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Finding the Fourth Proportional to 106,439, 146,884.20 and 58,691.12

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Solution

The fourth proportional to 106,439, 146,884.20 and 58,691.12 is: 80,992.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,439 : 146,884.20 = 58,691.12 : x
  2. Step 2: Convert to fraction form
    106,439/146,884.20 = 58,691.12/x
  3. Step 3: Cross multiply
    106,439x = 146,884.20 × 58,691.12
  4. Step 4: Simplify right side
    106,439x = 8,620,798,208.30
  5. Step 5: Solve for x
    x = 8,620,798,208.30/106,439
  6. Step 6: Final answer
    x = 80,992.85

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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.