Home / 259,610.38-389,437.44-82,113.46

Finding the Fourth Proportional to 259,610.38, 389,437.44 and 82,113.46

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Solution

The fourth proportional to 259,610.38, 389,437.44 and 82,113.46 is: 123,177.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,610.38 : 389,437.44 = 82,113.46 : x
  2. Step 2: Convert to fraction form
    259,610.38/389,437.44 = 82,113.46/x
  3. Step 3: Cross multiply
    259,610.38x = 389,437.44 × 82,113.46
  4. Step 4: Simplify right side
    259,610.38x = 31,978,055,651.94
  5. Step 5: Solve for x
    x = 31,978,055,651.94/259,610.38
  6. Step 6: Final answer
    x = 123,177.11

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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.