Home / 138,253.54-207,383.04-43,481.72

Finding the Fourth Proportional to 138,253.54, 207,383.04 and 43,481.72

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Solution

The fourth proportional to 138,253.54, 207,383.04 and 43,481.72 is: 65,223.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,253.54 : 207,383.04 = 43,481.72 : x
  2. Step 2: Convert to fraction form
    138,253.54/207,383.04 = 43,481.72/x
  3. Step 3: Cross multiply
    138,253.54x = 207,383.04 × 43,481.72
  4. Step 4: Simplify right side
    138,253.54x = 9,017,370,943.93
  5. Step 5: Solve for x
    x = 9,017,370,943.93/138,253.54
  6. Step 6: Final answer
    x = 65,223.44

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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.