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Finding the Fourth Proportional to 129,350.60, 194,025.90 and 113,280.20

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Solution

The fourth proportional to 129,350.60, 194,025.90 and 113,280.20 is: 169,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,350.60 : 194,025.90 = 113,280.20 : x
  2. Step 2: Convert to fraction form
    129,350.60/194,025.90 = 113,280.20/x
  3. Step 3: Cross multiply
    129,350.60x = 194,025.90 × 113,280.20
  4. Step 4: Simplify right side
    129,350.60x = 21,979,292,757.18
  5. Step 5: Solve for x
    x = 21,979,292,757.18/129,350.60
  6. Step 6: Final answer
    x = 169,920.30

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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.