Home / 131,418.60-197,144.31-51,446.24

Finding the Fourth Proportional to 131,418.60, 197,144.31 and 51,446.24

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Solution

The fourth proportional to 131,418.60, 197,144.31 and 51,446.24 is: 77,175.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,418.60 : 197,144.31 = 51,446.24 : x
  2. Step 2: Convert to fraction form
    131,418.60/197,144.31 = 51,446.24/x
  3. Step 3: Cross multiply
    131,418.60x = 197,144.31 × 51,446.24
  4. Step 4: Simplify right side
    131,418.60x = 10,142,332,999.31
  5. Step 5: Solve for x
    x = 10,142,332,999.31/131,418.60
  6. Step 6: Final answer
    x = 77,175.78

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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.