Question

86 is 45% of what number

Answer 1

To get the answer we can use proportion
86 --------------45%
x ---------------- 100%
Now cross multiply
x*45%=86*100
45x=8600      /:45 (divide both sides by 45)
x=191.11 - its the answer

Answer 2

The best thing to do is to find 1%, and you can do this by diving 86 by 45. 86/45= 1.9111, and you've then got to multiply this by 100, and this gives you 191.11 Hope this helps :)