Home / 138,273.92-207,364.76-54,012.24

Finding the Fourth Proportional to 138,273.92, 207,364.76 and 54,012.24

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Solution

The fourth proportional to 138,273.92, 207,364.76 and 54,012.24 is: 81,000.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,273.92 : 207,364.76 = 54,012.24 : x
  2. Step 2: Convert to fraction form
    138,273.92/207,364.76 = 54,012.24/x
  3. Step 3: Cross multiply
    138,273.92x = 207,364.76 × 54,012.24
  4. Step 4: Simplify right side
    138,273.92x = 11,200,235,184.66
  5. Step 5: Solve for x
    x = 11,200,235,184.66/138,273.92
  6. Step 6: Final answer
    x = 81,000.34

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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.