Home / 259,747.76-389,679.96-82,241.12

Finding the Fourth Proportional to 259,747.76, 389,679.96 and 82,241.12

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Solution

The fourth proportional to 259,747.76, 389,679.96 and 82,241.12 is: 123,380.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,747.76 : 389,679.96 = 82,241.12 : x
  2. Step 2: Convert to fraction form
    259,747.76/389,679.96 = 82,241.12/x
  3. Step 3: Cross multiply
    259,747.76x = 389,679.96 × 82,241.12
  4. Step 4: Simplify right side
    259,747.76x = 32,047,716,351.96
  5. Step 5: Solve for x
    x = 32,047,716,351.96/259,747.76
  6. Step 6: Final answer
    x = 123,380.15

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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.