Home / 140,909.88-194,460.36-77,251.44

Finding the Fourth Proportional to 140,909.88, 194,460.36 and 77,251.44

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Solution

The fourth proportional to 140,909.88, 194,460.36 and 77,251.44 is: 106,609.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,909.88 : 194,460.36 = 77,251.44 : x
  2. Step 2: Convert to fraction form
    140,909.88/194,460.36 = 77,251.44/x
  3. Step 3: Cross multiply
    140,909.88x = 194,460.36 × 77,251.44
  4. Step 4: Simplify right side
    140,909.88x = 15,022,342,832.92
  5. Step 5: Solve for x
    x = 15,022,342,832.92/140,909.88
  6. Step 6: Final answer
    x = 106,609.58

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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.