Home / 261,976.33-392,635.90-112,040.61

Finding the Fourth Proportional to 261,976.33, 392,635.90 and 112,040.61

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Solution

The fourth proportional to 261,976.33, 392,635.90 and 112,040.61 is: 167,920.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,976.33 : 392,635.90 = 112,040.61 : x
  2. Step 2: Convert to fraction form
    261,976.33/392,635.90 = 112,040.61/x
  3. Step 3: Cross multiply
    261,976.33x = 392,635.90 × 112,040.61
  4. Step 4: Simplify right side
    261,976.33x = 43,991,165,743.90
  5. Step 5: Solve for x
    x = 43,991,165,743.90/261,976.33
  6. Step 6: Final answer
    x = 167,920.38

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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.