The width is 1/3 of the length. You can tell that off of the ratio. To find the perimeter of a rectangle, you have to use the equation: 2L+2W=136 W=1/3L; We can plug that in for W. 2L+2(1/3L)=136 2L+2/3L=136 2 2/3L=136 136÷2 2/3= 51=L The length is 51 ft. We need to make sure by finding the width and making sure the perimeter is equal to 136. 3:1 51:17 The width is 17 ft. 17+17+51+51 34+102=136 So, the length is 51 ft.
