Home / 83,620.20-125,576.10-80,995.80

Finding the Fourth Proportional to 83,620.20, 125,576.10 and 80,995.80

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Solution

The fourth proportional to 83,620.20, 125,576.10 and 80,995.80 is: 121,634.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,620.20 : 125,576.10 = 80,995.80 : x
  2. Step 2: Convert to fraction form
    83,620.20/125,576.10 = 80,995.80/x
  3. Step 3: Cross multiply
    83,620.20x = 125,576.10 × 80,995.80
  4. Step 4: Simplify right side
    83,620.20x = 10,171,136,680.38
  5. Step 5: Solve for x
    x = 10,171,136,680.38/83,620.20
  6. Step 6: Final answer
    x = 121,634.92

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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.