Home / 82,882.20-124,176.90-80,141.40

Finding the Fourth Proportional to 82,882.20, 124,176.90 and 80,141.40

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Solution

The fourth proportional to 82,882.20, 124,176.90 and 80,141.40 is: 120,070.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,882.20 : 124,176.90 = 80,141.40 : x
  2. Step 2: Convert to fraction form
    82,882.20/124,176.90 = 80,141.40/x
  3. Step 3: Cross multiply
    82,882.20x = 124,176.90 × 80,141.40
  4. Step 4: Simplify right side
    82,882.20x = 9,951,710,613.66
  5. Step 5: Solve for x
    x = 9,951,710,613.66/82,882.20
  6. Step 6: Final answer
    x = 120,070.54

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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.