Home / 129,697.20-194,451.30-87,472.44

Finding the Fourth Proportional to 129,697.20, 194,451.30 and 87,472.44

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Solution

The fourth proportional to 129,697.20, 194,451.30 and 87,472.44 is: 131,144.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,697.20 : 194,451.30 = 87,472.44 : x
  2. Step 2: Convert to fraction form
    129,697.20/194,451.30 = 87,472.44/x
  3. Step 3: Cross multiply
    129,697.20x = 194,451.30 × 87,472.44
  4. Step 4: Simplify right side
    129,697.20x = 17,009,129,672.17
  5. Step 5: Solve for x
    x = 17,009,129,672.17/129,697.20
  6. Step 6: Final answer
    x = 131,144.93

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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.