Home / 87,122.50-130,684.76-82,873.24

Finding the Fourth Proportional to 87,122.50, 130,684.76 and 82,873.24

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Solution

The fourth proportional to 87,122.50, 130,684.76 and 82,873.24 is: 124,310.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,122.50 : 130,684.76 = 82,873.24 : x
  2. Step 2: Convert to fraction form
    87,122.50/130,684.76 = 82,873.24/x
  3. Step 3: Cross multiply
    87,122.50x = 130,684.76 × 82,873.24
  4. Step 4: Simplify right side
    87,122.50x = 10,830,269,479.82
  5. Step 5: Solve for x
    x = 10,830,269,479.82/87,122.50
  6. Step 6: Final answer
    x = 124,310.82

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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.