Home / 213,414.62-320,121.94-73,174.46

Finding the Fourth Proportional to 213,414.62, 320,121.94 and 73,174.46

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Solution

The fourth proportional to 213,414.62, 320,121.94 and 73,174.46 is: 109,761.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,414.62 : 320,121.94 = 73,174.46 : x
  2. Step 2: Convert to fraction form
    213,414.62/320,121.94 = 73,174.46/x
  3. Step 3: Cross multiply
    213,414.62x = 320,121.94 × 73,174.46
  4. Step 4: Simplify right side
    213,414.62x = 23,424,750,093.65
  5. Step 5: Solve for x
    x = 23,424,750,093.65/213,414.62
  6. Step 6: Final answer
    x = 109,761.69

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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.