Home / 215,732.76-323,645.85-82,613.02

Finding the Fourth Proportional to 215,732.76, 323,645.85 and 82,613.02

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Solution

The fourth proportional to 215,732.76, 323,645.85 and 82,613.02 is: 123,937.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,732.76 : 323,645.85 = 82,613.02 : x
  2. Step 2: Convert to fraction form
    215,732.76/323,645.85 = 82,613.02/x
  3. Step 3: Cross multiply
    215,732.76x = 323,645.85 × 82,613.02
  4. Step 4: Simplify right side
    215,732.76x = 26,737,360,665.90
  5. Step 5: Solve for x
    x = 26,737,360,665.90/215,732.76
  6. Step 6: Final answer
    x = 123,937.42

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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.