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Finding the Fourth Proportional to 109,624.86, 151,279.11 and 61,882.65

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Solution

The fourth proportional to 109,624.86, 151,279.11 and 61,882.65 is: 85,396.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,624.86 : 151,279.11 = 61,882.65 : x
  2. Step 2: Convert to fraction form
    109,624.86/151,279.11 = 61,882.65/x
  3. Step 3: Cross multiply
    109,624.86x = 151,279.11 × 61,882.65
  4. Step 4: Simplify right side
    109,624.86x = 9,361,552,216.44
  5. Step 5: Solve for x
    x = 9,361,552,216.44/109,624.86
  6. Step 6: Final answer
    x = 85,396.25

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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.