Home / 231,160.86-319,003.20-129,188.04

Finding the Fourth Proportional to 231,160.86, 319,003.20 and 129,188.04

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Solution

The fourth proportional to 231,160.86, 319,003.20 and 129,188.04 is: 178,280.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,160.86 : 319,003.20 = 129,188.04 : x
  2. Step 2: Convert to fraction form
    231,160.86/319,003.20 = 129,188.04/x
  3. Step 3: Cross multiply
    231,160.86x = 319,003.20 × 129,188.04
  4. Step 4: Simplify right side
    231,160.86x = 41,211,398,161.73
  5. Step 5: Solve for x
    x = 41,211,398,161.73/231,160.86
  6. Step 6: Final answer
    x = 178,280.17

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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.