Home / 87,840.94-131,892.62-86,528.74

Finding the Fourth Proportional to 87,840.94, 131,892.62 and 86,528.74

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Solution

The fourth proportional to 87,840.94, 131,892.62 and 86,528.74 is: 129,922.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,840.94 : 131,892.62 = 86,528.74 : x
  2. Step 2: Convert to fraction form
    87,840.94/131,892.62 = 86,528.74/x
  3. Step 3: Cross multiply
    87,840.94x = 131,892.62 × 86,528.74
  4. Step 4: Simplify right side
    87,840.94x = 11,412,502,223.90
  5. Step 5: Solve for x
    x = 11,412,502,223.90/87,840.94
  6. Step 6: Final answer
    x = 129,922.36

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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.