Home / 155,550.38-214,646.76-87,545.61

Finding the Fourth Proportional to 155,550.38, 214,646.76 and 87,545.61

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Solution

The fourth proportional to 155,550.38, 214,646.76 and 87,545.61 is: 120,805.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,550.38 : 214,646.76 = 87,545.61 : x
  2. Step 2: Convert to fraction form
    155,550.38/214,646.76 = 87,545.61/x
  3. Step 3: Cross multiply
    155,550.38x = 214,646.76 × 87,545.61
  4. Step 4: Simplify right side
    155,550.38x = 18,791,381,538.72
  5. Step 5: Solve for x
    x = 18,791,381,538.72/155,550.38
  6. Step 6: Final answer
    x = 120,805.76

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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.