Home / 99,747.81-137,651.92-63,937.79

Finding the Fourth Proportional to 99,747.81, 137,651.92 and 63,937.79

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Solution

The fourth proportional to 99,747.81, 137,651.92 and 63,937.79 is: 88,234.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,747.81 : 137,651.92 = 63,937.79 : x
  2. Step 2: Convert to fraction form
    99,747.81/137,651.92 = 63,937.79/x
  3. Step 3: Cross multiply
    99,747.81x = 137,651.92 × 63,937.79
  4. Step 4: Simplify right side
    99,747.81x = 8,801,159,554.06
  5. Step 5: Solve for x
    x = 8,801,159,554.06/99,747.81
  6. Step 6: Final answer
    x = 88,234.11

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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.