Home / 215,108.31-322,797.33-82,000.20

Finding the Fourth Proportional to 215,108.31, 322,797.33 and 82,000.20

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Solution

The fourth proportional to 215,108.31, 322,797.33 and 82,000.20 is: 123,051.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,108.31 : 322,797.33 = 82,000.20 : x
  2. Step 2: Convert to fraction form
    215,108.31/322,797.33 = 82,000.20/x
  3. Step 3: Cross multiply
    215,108.31x = 322,797.33 × 82,000.20
  4. Step 4: Simplify right side
    215,108.31x = 26,469,445,619.47
  5. Step 5: Solve for x
    x = 26,469,445,619.47/215,108.31
  6. Step 6: Final answer
    x = 123,051.71

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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.