Home / 187,008.60-258,073.92-102,128.16

Finding the Fourth Proportional to 187,008.60, 258,073.92 and 102,128.16

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Solution

The fourth proportional to 187,008.60, 258,073.92 and 102,128.16 is: 140,937.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,008.60 : 258,073.92 = 102,128.16 : x
  2. Step 2: Convert to fraction form
    187,008.60/258,073.92 = 102,128.16/x
  3. Step 3: Cross multiply
    187,008.60x = 258,073.92 × 102,128.16
  4. Step 4: Simplify right side
    187,008.60x = 26,356,614,593.59
  5. Step 5: Solve for x
    x = 26,356,614,593.59/187,008.60
  6. Step 6: Final answer
    x = 140,937.98

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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.