Home / 87,506.10-131,259.15-83,423.70

Finding the Fourth Proportional to 87,506.10, 131,259.15 and 83,423.70

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Solution

The fourth proportional to 87,506.10, 131,259.15 and 83,423.70 is: 125,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,506.10 : 131,259.15 = 83,423.70 : x
  2. Step 2: Convert to fraction form
    87,506.10/131,259.15 = 83,423.70/x
  3. Step 3: Cross multiply
    87,506.10x = 131,259.15 × 83,423.70
  4. Step 4: Simplify right side
    87,506.10x = 10,950,123,951.86
  5. Step 5: Solve for x
    x = 10,950,123,951.86/87,506.10
  6. Step 6: Final answer
    x = 125,135.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.