Home / 102,545.92-141,513.40-56,605.59

Finding the Fourth Proportional to 102,545.92, 141,513.40 and 56,605.59

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Solution

The fourth proportional to 102,545.92, 141,513.40 and 56,605.59 is: 78,115.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,545.92 : 141,513.40 = 56,605.59 : x
  2. Step 2: Convert to fraction form
    102,545.92/141,513.40 = 56,605.59/x
  3. Step 3: Cross multiply
    102,545.92x = 141,513.40 × 56,605.59
  4. Step 4: Simplify right side
    102,545.92x = 8,010,449,616.68
  5. Step 5: Solve for x
    x = 8,010,449,616.68/102,545.92
  6. Step 6: Final answer
    x = 78,115.73

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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.