Home / 230,531.88-318,143.71-129,929.88

Finding the Fourth Proportional to 230,531.88, 318,143.71 and 129,929.88

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Solution

The fourth proportional to 230,531.88, 318,143.71 and 129,929.88 is: 179,308.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,531.88 : 318,143.71 = 129,929.88 : x
  2. Step 2: Convert to fraction form
    230,531.88/318,143.71 = 129,929.88/x
  3. Step 3: Cross multiply
    230,531.88x = 318,143.71 × 129,929.88
  4. Step 4: Simplify right side
    230,531.88x = 41,336,372,472.34
  5. Step 5: Solve for x
    x = 41,336,372,472.34/230,531.88
  6. Step 6: Final answer
    x = 179,308.71

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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.