Home / 187,611.16-258,900.84-102,728.20

Finding the Fourth Proportional to 187,611.16, 258,900.84 and 102,728.20

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Solution

The fourth proportional to 187,611.16, 258,900.84 and 102,728.20 is: 141,763.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,611.16 : 258,900.84 = 102,728.20 : x
  2. Step 2: Convert to fraction form
    187,611.16/258,900.84 = 102,728.20/x
  3. Step 3: Cross multiply
    187,611.16x = 258,900.84 × 102,728.20
  4. Step 4: Simplify right side
    187,611.16x = 26,596,417,271.69
  5. Step 5: Solve for x
    x = 26,596,417,271.69/187,611.16
  6. Step 6: Final answer
    x = 141,763.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.