Home / 151,431.74-227,213.22-81,229.04

Finding the Fourth Proportional to 151,431.74, 227,213.22 and 81,229.04

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Solution

The fourth proportional to 151,431.74, 227,213.22 and 81,229.04 is: 121,878.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,431.74 : 227,213.22 = 81,229.04 : x
  2. Step 2: Convert to fraction form
    151,431.74/227,213.22 = 81,229.04/x
  3. Step 3: Cross multiply
    151,431.74x = 227,213.22 × 81,229.04
  4. Step 4: Simplify right side
    151,431.74x = 18,456,311,756.50
  5. Step 5: Solve for x
    x = 18,456,311,756.50/151,431.74
  6. Step 6: Final answer
    x = 121,878.75

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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.