Home / 87,509.26-131,330.94-67,738.78

Finding the Fourth Proportional to 87,509.26, 131,330.94 and 67,738.78

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Solution

The fourth proportional to 87,509.26, 131,330.94 and 67,738.78 is: 101,660.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,509.26 : 131,330.94 = 67,738.78 : x
  2. Step 2: Convert to fraction form
    87,509.26/131,330.94 = 67,738.78/x
  3. Step 3: Cross multiply
    87,509.26x = 131,330.94 × 67,738.78
  4. Step 4: Simplify right side
    87,509.26x = 8,896,197,651.85
  5. Step 5: Solve for x
    x = 8,896,197,651.85/87,509.26
  6. Step 6: Final answer
    x = 101,660.07

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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.