Home / 231,311.75-319,087.08-140,695.43

Finding the Fourth Proportional to 231,311.75, 319,087.08 and 140,695.43

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Solution

The fourth proportional to 231,311.75, 319,087.08 and 140,695.43 is: 194,084.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,311.75 : 319,087.08 = 140,695.43 : x
  2. Step 2: Convert to fraction form
    231,311.75/319,087.08 = 140,695.43/x
  3. Step 3: Cross multiply
    231,311.75x = 319,087.08 × 140,695.43
  4. Step 4: Simplify right side
    231,311.75x = 44,894,092,332.61
  5. Step 5: Solve for x
    x = 44,894,092,332.61/231,311.75
  6. Step 6: Final answer
    x = 194,084.79

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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.