163.35 is 45% of what number How do I solve w/o a calculator?

Question

163.35 is 45% of what number> How do I solve w/o a calculator?

anonymous · Answer

363

anonymous · Answer

163.45 = 0.45 x number
Required Number = 163.45/0.45

anonymous · Answer

cross muliply= 163.35/x=45/100

anonymous · Answer

both mean the same wilverine

anonymous · Answer

Know a method of solving w/o a calc? I could just multiply, but another method would help

anonymous · Answer

Wait I can cross multiply this?

anonymous · Answer

that is without using calculator.. simple long division and multiplcation

anonymous · Answer

yeah the fractions is equal to each other because 163.35/x where x is 100% and 163.35 is 45% of x

anonymous · Answer

Can I cross multiply this also? 105=y*24%?

anonymous · Answer

yeah. 105/y=24/100.. but it can also solve for y, because to change a percent to a number just move decimal over 2 places to the left, 105=y*.24