Home / 148,610.78-222,744.50-68,481.20

Finding the Fourth Proportional to 148,610.78, 222,744.50 and 68,481.20

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Solution

The fourth proportional to 148,610.78, 222,744.50 and 68,481.20 is: 102,642.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,610.78 : 222,744.50 = 68,481.20 : x
  2. Step 2: Convert to fraction form
    148,610.78/222,744.50 = 68,481.20/x
  3. Step 3: Cross multiply
    148,610.78x = 222,744.50 × 68,481.20
  4. Step 4: Simplify right side
    148,610.78x = 15,253,810,653.40
  5. Step 5: Solve for x
    x = 15,253,810,653.40/148,610.78
  6. Step 6: Final answer
    x = 102,642.69

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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.