Home / 140,912.12-194,458.32-77,249.97

Finding the Fourth Proportional to 140,912.12, 194,458.32 and 77,249.97

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Solution

The fourth proportional to 140,912.12, 194,458.32 and 77,249.97 is: 106,604.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,912.12 : 194,458.32 = 77,249.97 : x
  2. Step 2: Convert to fraction form
    140,912.12/194,458.32 = 77,249.97/x
  3. Step 3: Cross multiply
    140,912.12x = 194,458.32 × 77,249.97
  4. Step 4: Simplify right side
    140,912.12x = 15,021,899,386.25
  5. Step 5: Solve for x
    x = 15,021,899,386.25/140,912.12
  6. Step 6: Final answer
    x = 106,604.73

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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.