Home / 129,177.55-193,661.76-40,385.35

Finding the Fourth Proportional to 129,177.55, 193,661.76 and 40,385.35

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Solution

The fourth proportional to 129,177.55, 193,661.76 and 40,385.35 is: 60,545.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,177.55 : 193,661.76 = 40,385.35 : x
  2. Step 2: Convert to fraction form
    129,177.55/193,661.76 = 40,385.35/x
  3. Step 3: Cross multiply
    129,177.55x = 193,661.76 × 40,385.35
  4. Step 4: Simplify right side
    129,177.55x = 7,821,096,990.91
  5. Step 5: Solve for x
    x = 7,821,096,990.91/129,177.55
  6. Step 6: Final answer
    x = 60,545.33

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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.