设小方有x张.
x + 3x + 3x × 2 = 180
4x + 6x = 180
10x = 180
x = 180 ÷ 10
x = 18
18 × 3 = 54张
54 × 2 = 108张
答：小方有18张,小明有54张,小强有108张.