Home / 87,540.90-131,464.95-84,776.10

Finding the Fourth Proportional to 87,540.90, 131,464.95 and 84,776.10

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Solution

The fourth proportional to 87,540.90, 131,464.95 and 84,776.10 is: 127,312.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,540.90 : 131,464.95 = 84,776.10 : x
  2. Step 2: Convert to fraction form
    87,540.90/131,464.95 = 84,776.10/x
  3. Step 3: Cross multiply
    87,540.90x = 131,464.95 × 84,776.10
  4. Step 4: Simplify right side
    87,540.90x = 11,145,085,747.70
  5. Step 5: Solve for x
    x = 11,145,085,747.70/87,540.90
  6. Step 6: Final answer
    x = 127,312.90

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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.