Home / 231,500.54-319,483.12-129,519.92

Finding the Fourth Proportional to 231,500.54, 319,483.12 and 129,519.92

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Solution

The fourth proportional to 231,500.54, 319,483.12 and 129,519.92 is: 178,744.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,500.54 : 319,483.12 = 129,519.92 : x
  2. Step 2: Convert to fraction form
    231,500.54/319,483.12 = 129,519.92/x
  3. Step 3: Cross multiply
    231,500.54x = 319,483.12 × 129,519.92
  4. Step 4: Simplify right side
    231,500.54x = 41,379,428,143.75
  5. Step 5: Solve for x
    x = 41,379,428,143.75/231,500.54
  6. Step 6: Final answer
    x = 178,744.41

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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.