Home / 87,523.80-131,285.70-80,765.40

Finding the Fourth Proportional to 87,523.80, 131,285.70 and 80,765.40

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Solution

The fourth proportional to 87,523.80, 131,285.70 and 80,765.40 is: 121,148.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,523.80 : 131,285.70 = 80,765.40 : x
  2. Step 2: Convert to fraction form
    87,523.80/131,285.70 = 80,765.40/x
  3. Step 3: Cross multiply
    87,523.80x = 131,285.70 × 80,765.40
  4. Step 4: Simplify right side
    87,523.80x = 10,603,342,074.78
  5. Step 5: Solve for x
    x = 10,603,342,074.78/87,523.80
  6. Step 6: Final answer
    x = 121,148.10

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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.