Home / 87,534.80-131,302.20-83,695.40

Finding the Fourth Proportional to 87,534.80, 131,302.20 and 83,695.40

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Solution

The fourth proportional to 87,534.80, 131,302.20 and 83,695.40 is: 125,543.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,534.80 : 131,302.20 = 83,695.40 : x
  2. Step 2: Convert to fraction form
    87,534.80/131,302.20 = 83,695.40/x
  3. Step 3: Cross multiply
    87,534.80x = 131,302.20 × 83,695.40
  4. Step 4: Simplify right side
    87,534.80x = 10,989,390,149.88
  5. Step 5: Solve for x
    x = 10,989,390,149.88/87,534.80
  6. Step 6: Final answer
    x = 125,543.10

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1.5x scale

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.