Home / 87,332.65-131,090.59-77,400.94

Finding the Fourth Proportional to 87,332.65, 131,090.59 and 77,400.94

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Solution

The fourth proportional to 87,332.65, 131,090.59 and 77,400.94 is: 116,182.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,332.65 : 131,090.59 = 77,400.94 : x
  2. Step 2: Convert to fraction form
    87,332.65/131,090.59 = 77,400.94/x
  3. Step 3: Cross multiply
    87,332.65x = 131,090.59 × 77,400.94
  4. Step 4: Simplify right side
    87,332.65x = 10,146,534,891.15
  5. Step 5: Solve for x
    x = 10,146,534,891.15/87,332.65
  6. Step 6: Final answer
    x = 116,182.61

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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.