Home / 80,182.20-120,273.30-38,710.20

Finding the Fourth Proportional to 80,182.20, 120,273.30 and 38,710.20

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Solution

The fourth proportional to 80,182.20, 120,273.30 and 38,710.20 is: 58,065.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,182.20 : 120,273.30 = 38,710.20 : x
  2. Step 2: Convert to fraction form
    80,182.20/120,273.30 = 38,710.20/x
  3. Step 3: Cross multiply
    80,182.20x = 120,273.30 × 38,710.20
  4. Step 4: Simplify right side
    80,182.20x = 4,655,803,497.66
  5. Step 5: Solve for x
    x = 4,655,803,497.66/80,182.20
  6. Step 6: Final answer
    x = 58,065.30

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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.