Home / 87,329.65-131,086.09-77,397.94

Finding the Fourth Proportional to 87,329.65, 131,086.09 and 77,397.94

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Solution

The fourth proportional to 87,329.65, 131,086.09 and 77,397.94 is: 116,178.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,329.65 : 131,086.09 = 77,397.94 : x
  2. Step 2: Convert to fraction form
    87,329.65/131,086.09 = 77,397.94/x
  3. Step 3: Cross multiply
    87,329.65x = 131,086.09 × 77,397.94
  4. Step 4: Simplify right side
    87,329.65x = 10,145,793,328.65
  5. Step 5: Solve for x
    x = 10,145,793,328.65/87,329.65
  6. Step 6: Final answer
    x = 116,178.11

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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.