Home / 225,941.18-338,675.25-76,129.70

Finding the Fourth Proportional to 225,941.18, 338,675.25 and 76,129.70

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Solution

The fourth proportional to 225,941.18, 338,675.25 and 76,129.70 is: 114,114.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,941.18 : 338,675.25 = 76,129.70 : x
  2. Step 2: Convert to fraction form
    225,941.18/338,675.25 = 76,129.70/x
  3. Step 3: Cross multiply
    225,941.18x = 338,675.25 × 76,129.70
  4. Step 4: Simplify right side
    225,941.18x = 25,783,246,026.61
  5. Step 5: Solve for x
    x = 25,783,246,026.61/225,941.18
  6. Step 6: Final answer
    x = 114,114.86

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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.