Home / 99,834.32-137,771.68-54,512.70

Finding the Fourth Proportional to 99,834.32, 137,771.68 and 54,512.70

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Solution

The fourth proportional to 99,834.32, 137,771.68 and 54,512.70 is: 75,227.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,834.32 : 137,771.68 = 54,512.70 : x
  2. Step 2: Convert to fraction form
    99,834.32/137,771.68 = 54,512.70/x
  3. Step 3: Cross multiply
    99,834.32x = 137,771.68 × 54,512.70
  4. Step 4: Simplify right side
    99,834.32x = 7,510,306,260.34
  5. Step 5: Solve for x
    x = 7,510,306,260.34/99,834.32
  6. Step 6: Final answer
    x = 75,227.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.