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Finding the Fourth Proportional to 113,279.40, 169,943.40 and 34,401.60

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Solution

The fourth proportional to 113,279.40, 169,943.40 and 34,401.60 is: 51,609.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,279.40 : 169,943.40 = 34,401.60 : x
  2. Step 2: Convert to fraction form
    113,279.40/169,943.40 = 34,401.60/x
  3. Step 3: Cross multiply
    113,279.40x = 169,943.40 × 34,401.60
  4. Step 4: Simplify right side
    113,279.40x = 5,846,324,869.44
  5. Step 5: Solve for x
    x = 5,846,324,869.44/113,279.40
  6. Step 6: Final answer
    x = 51,609.78

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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.