Home / 161,691.21-242,447.54-75,042.61

Finding the Fourth Proportional to 161,691.21, 242,447.54 and 75,042.61

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Solution

The fourth proportional to 161,691.21, 242,447.54 and 75,042.61 is: 112,522.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,691.21 : 242,447.54 = 75,042.61 : x
  2. Step 2: Convert to fraction form
    161,691.21/242,447.54 = 75,042.61/x
  3. Step 3: Cross multiply
    161,691.21x = 242,447.54 × 75,042.61
  4. Step 4: Simplify right side
    161,691.21x = 18,193,896,189.68
  5. Step 5: Solve for x
    x = 18,193,896,189.68/161,691.21
  6. Step 6: Final answer
    x = 112,522.48

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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.