Home / 231,724.62-319,771.11-129,740.55

Finding the Fourth Proportional to 231,724.62, 319,771.11 and 129,740.55

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Solution

The fourth proportional to 231,724.62, 319,771.11 and 129,740.55 is: 179,037.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,724.62 : 319,771.11 = 129,740.55 : x
  2. Step 2: Convert to fraction form
    231,724.62/319,771.11 = 129,740.55/x
  3. Step 3: Cross multiply
    231,724.62x = 319,771.11 × 129,740.55
  4. Step 4: Simplify right side
    231,724.62x = 41,487,279,685.51
  5. Step 5: Solve for x
    x = 41,487,279,685.51/231,724.62
  6. Step 6: Final answer
    x = 179,037.00

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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.