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Finding the Fourth Proportional to 133,680.40, 200,520.60 and 132,758.80

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Solution

The fourth proportional to 133,680.40, 200,520.60 and 132,758.80 is: 199,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,680.40 : 200,520.60 = 132,758.80 : x
  2. Step 2: Convert to fraction form
    133,680.40/200,520.60 = 132,758.80/x
  3. Step 3: Cross multiply
    133,680.40x = 200,520.60 × 132,758.80
  4. Step 4: Simplify right side
    133,680.40x = 26,620,874,231.28
  5. Step 5: Solve for x
    x = 26,620,874,231.28/133,680.40
  6. Step 6: Final answer
    x = 199,138.20

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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.