| ( | 69255 | + | x | ) | ÷ | ( | x | + | 69255 | + | 100000 | ) | = | 111 250 |
| 方程两边同时乘以: | ( | x | + | 69255 | + | 100000 | ) |
| ( | 69255 | + | x | ) | = | 111 250 | ( | x | + | 69255 | + | 100000 | ) |
| 69255 | + | x | = | 111 250 | ( | x | + | 69255 | + | 100000 | ) |
| 69255 | + | x | = | 111 250 | x | + | 111 250 | × | 69255 | + | 111 250 | × | 100000 |
| 69255 | + | x | = | 111 250 | x | + | 1537461 50 | + | 44400 |
| 69255 | + | x | = | 111 250 | x | + | 3757461 50 |
| x | − | 111 250 | x | = | 3757461 50 | − | 69255 |
139 250 | x | = | 3757461 50 | − | 69255 |
139 250 | x | = | 294711 50 |
| x | = | 294711 50 | ÷ | 139 250 |
| = | 294711 50 | × | 250 139 |
| = | 294711 | × | 5 139 |
| x | = | 1473555 139 |
| x | = | 10601.115108 |