Home / 129,688.80-194,550.21-50,792.78

Finding the Fourth Proportional to 129,688.80, 194,550.21 and 50,792.78

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Solution

The fourth proportional to 129,688.80, 194,550.21 and 50,792.78 is: 76,195.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,688.80 : 194,550.21 = 50,792.78 : x
  2. Step 2: Convert to fraction form
    129,688.80/194,550.21 = 50,792.78/x
  3. Step 3: Cross multiply
    129,688.80x = 194,550.21 × 50,792.78
  4. Step 4: Simplify right side
    129,688.80x = 9,881,745,042.73
  5. Step 5: Solve for x
    x = 9,881,745,042.73/129,688.80
  6. Step 6: Final answer
    x = 76,195.82

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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.