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Finding the Fourth Proportional to 79,934.80, 119,808.84 and 60,149.76

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Solution

The fourth proportional to 79,934.80, 119,808.84 and 60,149.76 is: 90,154.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,934.80 : 119,808.84 = 60,149.76 : x
  2. Step 2: Convert to fraction form
    79,934.80/119,808.84 = 60,149.76/x
  3. Step 3: Cross multiply
    79,934.80x = 119,808.84 × 60,149.76
  4. Step 4: Simplify right side
    79,934.80x = 7,206,472,971.88
  5. Step 5: Solve for x
    x = 7,206,472,971.88/79,934.80
  6. Step 6: Final answer
    x = 90,154.39

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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.