Home / 140,850.96-194,375.85-77,187.39

Finding the Fourth Proportional to 140,850.96, 194,375.85 and 77,187.39

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Solution

The fourth proportional to 140,850.96, 194,375.85 and 77,187.39 is: 106,519.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,850.96 : 194,375.85 = 77,187.39 : x
  2. Step 2: Convert to fraction form
    140,850.96/194,375.85 = 77,187.39/x
  3. Step 3: Cross multiply
    140,850.96x = 194,375.85 × 77,187.39
  4. Step 4: Simplify right side
    140,850.96x = 15,003,364,540.53
  5. Step 5: Solve for x
    x = 15,003,364,540.53/140,850.96
  6. Step 6: Final answer
    x = 106,519.43

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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.