Home / 87,960.20-132,017.10-70,385.80

Finding the Fourth Proportional to 87,960.20, 132,017.10 and 70,385.80

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Solution

The fourth proportional to 87,960.20, 132,017.10 and 70,385.80 is: 105,640.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,960.20 : 132,017.10 = 70,385.80 : x
  2. Step 2: Convert to fraction form
    87,960.20/132,017.10 = 70,385.80/x
  3. Step 3: Cross multiply
    87,960.20x = 132,017.10 × 70,385.80
  4. Step 4: Simplify right side
    87,960.20x = 9,292,129,197.18
  5. Step 5: Solve for x
    x = 9,292,129,197.18/87,960.20
  6. Step 6: Final answer
    x = 105,640.16

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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.