Home / 140,876.20-194,408.26-77,217.96

Finding the Fourth Proportional to 140,876.20, 194,408.26 and 77,217.96

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Solution

The fourth proportional to 140,876.20, 194,408.26 and 77,217.96 is: 106,560.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,876.20 : 194,408.26 = 77,217.96 : x
  2. Step 2: Convert to fraction form
    140,876.20/194,408.26 = 77,217.96/x
  3. Step 3: Cross multiply
    140,876.20x = 194,408.26 × 77,217.96
  4. Step 4: Simplify right side
    140,876.20x = 15,011,809,244.35
  5. Step 5: Solve for x
    x = 15,011,809,244.35/140,876.20
  6. Step 6: Final answer
    x = 106,560.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.