125/100 = 425/x. first find x. so multiply both sides by 100 so 125=42500/x. now multiply both sides by x so 125x=42500. divide both sides by 125 so x=340. now, find 65% of 340. to find this, we set up the proportion (like the previous one) 65/100=x/340 we multiply both sides by 100 so 65=100x/340 multiply both sides by 340 so 22100=100x divide both sides by 100 so x = 221 which is 65% of the number