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Finding the Fourth Proportional to 133,324.20, 200,115.90 and 80,836.20

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Solution

The fourth proportional to 133,324.20, 200,115.90 and 80,836.20 is: 121,332.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,324.20 : 200,115.90 = 80,836.20 : x
  2. Step 2: Convert to fraction form
    133,324.20/200,115.90 = 80,836.20/x
  3. Step 3: Cross multiply
    133,324.20x = 200,115.90 × 80,836.20
  4. Step 4: Simplify right side
    133,324.20x = 16,176,608,915.58
  5. Step 5: Solve for x
    x = 16,176,608,915.58/133,324.20
  6. Step 6: Final answer
    x = 121,332.88

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1.5x scale

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.