Home / 226,146.75-339,375.65-78,402.75

Finding the Fourth Proportional to 226,146.75, 339,375.65 and 78,402.75

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Solution

The fourth proportional to 226,146.75, 339,375.65 and 78,402.75 is: 117,658.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,146.75 : 339,375.65 = 78,402.75 : x
  2. Step 2: Convert to fraction form
    226,146.75/339,375.65 = 78,402.75/x
  3. Step 3: Cross multiply
    226,146.75x = 339,375.65 × 78,402.75
  4. Step 4: Simplify right side
    226,146.75x = 26,607,983,851.02
  5. Step 5: Solve for x
    x = 26,607,983,851.02/226,146.75
  6. Step 6: Final answer
    x = 117,658.04

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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.