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Finding the Fourth Proportional to 132,000.80, 198,001.20 and 130,834.40

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Solution

The fourth proportional to 132,000.80, 198,001.20 and 130,834.40 is: 196,251.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,000.80 : 198,001.20 = 130,834.40 : x
  2. Step 2: Convert to fraction form
    132,000.80/198,001.20 = 130,834.40/x
  3. Step 3: Cross multiply
    132,000.80x = 198,001.20 × 130,834.40
  4. Step 4: Simplify right side
    132,000.80x = 25,905,368,201.28
  5. Step 5: Solve for x
    x = 25,905,368,201.28/132,000.80
  6. Step 6: Final answer
    x = 196,251.60

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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.