| ( | 14031 10 | + | 1403 50 | + | 1 100 | K | + | 154 5 | ) | × | 5 100 | = | 0 |
| 方程左边 = | 14031 10 | × | 5 100 | + | 1403 50 | × | 5 100 | + | 1 100 | K | × | 5 100 | + | 154 5 | × | 5 100 |
| = | 14031 200 | + | 1403 1000 | + | 1 2000 | K | + | 77 50 |
| = | 36549 500 | + | 1 2000 | K |
36549 500 | + | 1 2000 | K | = | 0 |
1 2000 | K | = | 0 | − | 36549 500 |
1 2000 | K | = | - | 36549 500 |
| K | = | - | 36549 500 | ÷ | 1 2000 |
| = | - | 36549 500 | × | 2000 |
| = | - | 36549 | × | 4 |
| K | = | - | 146196 |