Home / 129,022.38-193,545.99-50,142.78

Finding the Fourth Proportional to 129,022.38, 193,545.99 and 50,142.78

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Solution

The fourth proportional to 129,022.38, 193,545.99 and 50,142.78 is: 75,219.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,022.38 : 193,545.99 = 50,142.78 : x
  2. Step 2: Convert to fraction form
    129,022.38/193,545.99 = 50,142.78/x
  3. Step 3: Cross multiply
    129,022.38x = 193,545.99 × 50,142.78
  4. Step 4: Simplify right side
    129,022.38x = 9,704,933,996.45
  5. Step 5: Solve for x
    x = 9,704,933,996.45/129,022.38
  6. Step 6: Final answer
    x = 75,219.00

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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.