Home / 231,576.77-319,581.66-129,601.43

Finding the Fourth Proportional to 231,576.77, 319,581.66 and 129,601.43

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Solution

The fourth proportional to 231,576.77, 319,581.66 and 129,601.43 is: 178,853.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,576.77 : 319,581.66 = 129,601.43 : x
  2. Step 2: Convert to fraction form
    231,576.77/319,581.66 = 129,601.43/x
  3. Step 3: Cross multiply
    231,576.77x = 319,581.66 × 129,601.43
  4. Step 4: Simplify right side
    231,576.77x = 41,418,240,137.77
  5. Step 5: Solve for x
    x = 41,418,240,137.77/231,576.77
  6. Step 6: Final answer
    x = 178,853.17

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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.