Home / 259,607.40-389,432.96-82,110.48

Finding the Fourth Proportional to 259,607.40, 389,432.96 and 82,110.48

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Solution

The fourth proportional to 259,607.40, 389,432.96 and 82,110.48 is: 123,172.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,607.40 : 389,432.96 = 82,110.48 : x
  2. Step 2: Convert to fraction form
    259,607.40/389,432.96 = 82,110.48/x
  3. Step 3: Cross multiply
    259,607.40x = 389,432.96 × 82,110.48
  4. Step 4: Simplify right side
    259,607.40x = 31,976,527,273.42
  5. Step 5: Solve for x
    x = 31,976,527,273.42/259,607.40
  6. Step 6: Final answer
    x = 123,172.63

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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.