Home / 231,885.17-319,928.89-129,896.85

Finding the Fourth Proportional to 231,885.17, 319,928.89 and 129,896.85

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Solution

The fourth proportional to 231,885.17, 319,928.89 and 129,896.85 is: 179,216.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,885.17 : 319,928.89 = 129,896.85 : x
  2. Step 2: Convert to fraction form
    231,885.17/319,928.89 = 129,896.85/x
  3. Step 3: Cross multiply
    231,885.17x = 319,928.89 × 129,896.85
  4. Step 4: Simplify right side
    231,885.17x = 41,557,755,035.00
  5. Step 5: Solve for x
    x = 41,557,755,035.00/231,885.17
  6. Step 6: Final answer
    x = 179,216.96

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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.