Home / 87,171.98-120,333.94-73,812.44

Finding the Fourth Proportional to 87,171.98, 120,333.94 and 73,812.44

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Solution

The fourth proportional to 87,171.98, 120,333.94 and 73,812.44 is: 101,892.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,171.98 : 120,333.94 = 73,812.44 : x
  2. Step 2: Convert to fraction form
    87,171.98/120,333.94 = 73,812.44/x
  3. Step 3: Cross multiply
    87,171.98x = 120,333.94 × 73,812.44
  4. Step 4: Simplify right side
    87,171.98x = 8,882,141,726.21
  5. Step 5: Solve for x
    x = 8,882,141,726.21/87,171.98
  6. Step 6: Final answer
    x = 101,892.16

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1.5x scale

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.