Home / 129,685.91-194,473.78-50,787.59

Finding the Fourth Proportional to 129,685.91, 194,473.78 and 50,787.59

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Solution

The fourth proportional to 129,685.91, 194,473.78 and 50,787.59 is: 76,159.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,685.91 : 194,473.78 = 50,787.59 : x
  2. Step 2: Convert to fraction form
    129,685.91/194,473.78 = 50,787.59/x
  3. Step 3: Cross multiply
    129,685.91x = 194,473.78 × 50,787.59
  4. Step 4: Simplify right side
    129,685.91x = 9,876,853,505.05
  5. Step 5: Solve for x
    x = 9,876,853,505.05/129,685.91
  6. Step 6: Final answer
    x = 76,159.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.