Home / 259,616.41-389,438.79-82,110.17

Finding the Fourth Proportional to 259,616.41, 389,438.79 and 82,110.17

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Solution

The fourth proportional to 259,616.41, 389,438.79 and 82,110.17 is: 123,169.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,616.41 : 389,438.79 = 82,110.17 : x
  2. Step 2: Convert to fraction form
    259,616.41/389,438.79 = 82,110.17/x
  3. Step 3: Cross multiply
    259,616.41x = 389,438.79 × 82,110.17
  4. Step 4: Simplify right side
    259,616.41x = 31,976,885,917.18
  5. Step 5: Solve for x
    x = 31,976,885,917.18/259,616.41
  6. Step 6: Final answer
    x = 123,169.74

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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.