Home / 154,519.38-231,387.03-129,493.62

Finding the Fourth Proportional to 154,519.38, 231,387.03 and 129,493.62

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Solution

The fourth proportional to 154,519.38, 231,387.03 and 129,493.62 is: 193,911.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,519.38 : 231,387.03 = 129,493.62 : x
  2. Step 2: Convert to fraction form
    154,519.38/231,387.03 = 129,493.62/x
  3. Step 3: Cross multiply
    154,519.38x = 231,387.03 × 129,493.62
  4. Step 4: Simplify right side
    154,519.38x = 29,963,144,135.75
  5. Step 5: Solve for x
    x = 29,963,144,135.75/154,519.38
  6. Step 6: Final answer
    x = 193,911.88

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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.