Home / 319,431.97-479,044.24-106,142.60

Finding the Fourth Proportional to 319,431.97, 479,044.24 and 106,142.60

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Solution

The fourth proportional to 319,431.97, 479,044.24 and 106,142.60 is: 159,179.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,431.97 : 479,044.24 = 106,142.60 : x
  2. Step 2: Convert to fraction form
    319,431.97/479,044.24 = 106,142.60/x
  3. Step 3: Cross multiply
    319,431.97x = 479,044.24 × 106,142.60
  4. Step 4: Simplify right side
    319,431.97x = 50,847,002,677.93
  5. Step 5: Solve for x
    x = 50,847,002,677.93/319,431.97
  6. Step 6: Final answer
    x = 159,179.44

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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.