What number is 70% of 200

70% = 0.7
0.7 of 200 = 0.7*200
                 = 140
So, 70% of 200 is 140

it's 140

200/x=100/70
(200/x)*x=(100/70)*x       - we multiply both sides of the equation by x
200=1.42857142857*x       - we divide both sides of the equation by (1.42857142857) to get x
200/1.42857142857=x 
140=x 
x=140