Home / 129,280.77-193,921.17-40,542.03

Finding the Fourth Proportional to 129,280.77, 193,921.17 and 40,542.03

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Solution

The fourth proportional to 129,280.77, 193,921.17 and 40,542.03 is: 60,813.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,280.77 : 193,921.17 = 40,542.03 : x
  2. Step 2: Convert to fraction form
    129,280.77/193,921.17 = 40,542.03/x
  3. Step 3: Cross multiply
    129,280.77x = 193,921.17 × 40,542.03
  4. Step 4: Simplify right side
    129,280.77x = 7,861,957,891.78
  5. Step 5: Solve for x
    x = 7,861,957,891.78/129,280.77
  6. Step 6: Final answer
    x = 60,813.05

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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.