Home / 215,844.13-323,581.54-82,819.85

Finding the Fourth Proportional to 215,844.13, 323,581.54 and 82,819.85

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Solution

The fourth proportional to 215,844.13, 323,581.54 and 82,819.85 is: 124,158.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,844.13 : 323,581.54 = 82,819.85 : x
  2. Step 2: Convert to fraction form
    215,844.13/323,581.54 = 82,819.85/x
  3. Step 3: Cross multiply
    215,844.13x = 323,581.54 × 82,819.85
  4. Step 4: Simplify right side
    215,844.13x = 26,798,974,605.57
  5. Step 5: Solve for x
    x = 26,798,974,605.57/215,844.13
  6. Step 6: Final answer
    x = 124,158.92

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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.