Home / 87,508.80-131,263.20-83,669.40

Finding the Fourth Proportional to 87,508.80, 131,263.20 and 83,669.40

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Solution

The fourth proportional to 87,508.80, 131,263.20 and 83,669.40 is: 125,504.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,508.80 : 131,263.20 = 83,669.40 : x
  2. Step 2: Convert to fraction form
    87,508.80/131,263.20 = 83,669.40/x
  3. Step 3: Cross multiply
    87,508.80x = 131,263.20 × 83,669.40
  4. Step 4: Simplify right side
    87,508.80x = 10,982,713,186.08
  5. Step 5: Solve for x
    x = 10,982,713,186.08/87,508.80
  6. Step 6: Final answer
    x = 125,504.10

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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.