Home / 129,007.20-193,251.60-89,608.80

Finding the Fourth Proportional to 129,007.20, 193,251.60 and 89,608.80

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Solution

The fourth proportional to 129,007.20, 193,251.60 and 89,608.80 is: 134,233.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,007.20 : 193,251.60 = 89,608.80 : x
  2. Step 2: Convert to fraction form
    129,007.20/193,251.60 = 89,608.80/x
  3. Step 3: Cross multiply
    129,007.20x = 193,251.60 × 89,608.80
  4. Step 4: Simplify right side
    129,007.20x = 17,317,043,974.08
  5. Step 5: Solve for x
    x = 17,317,043,974.08/129,007.20
  6. Step 6: Final answer
    x = 134,233.16

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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.