Home / 161,731.68-242,498.70-77,517.60

Finding the Fourth Proportional to 161,731.68, 242,498.70 and 77,517.60

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Solution

The fourth proportional to 161,731.68, 242,498.70 and 77,517.60 is: 116,229.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,731.68 : 242,498.70 = 77,517.60 : x
  2. Step 2: Convert to fraction form
    161,731.68/242,498.70 = 77,517.60/x
  3. Step 3: Cross multiply
    161,731.68x = 242,498.70 × 77,517.60
  4. Step 4: Simplify right side
    161,731.68x = 18,797,917,227.12
  5. Step 5: Solve for x
    x = 18,797,917,227.12/161,731.68
  6. Step 6: Final answer
    x = 116,229.04

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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.