Home / 138,021.90-207,076.60-49,273.44

Finding the Fourth Proportional to 138,021.90, 207,076.60 and 49,273.44

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Solution

The fourth proportional to 138,021.90, 207,076.60 and 49,273.44 is: 73,925.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,021.90 : 207,076.60 = 49,273.44 : x
  2. Step 2: Convert to fraction form
    138,021.90/207,076.60 = 49,273.44/x
  3. Step 3: Cross multiply
    138,021.90x = 207,076.60 × 49,273.44
  4. Step 4: Simplify right side
    138,021.90x = 10,203,376,425.50
  5. Step 5: Solve for x
    x = 10,203,376,425.50/138,021.90
  6. Step 6: Final answer
    x = 73,925.78

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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.