Home / 148,456.80-222,685.20-138,615.30

Finding the Fourth Proportional to 148,456.80, 222,685.20 and 138,615.30

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Solution

The fourth proportional to 148,456.80, 222,685.20 and 138,615.30 is: 207,922.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,456.80 : 222,685.20 = 138,615.30 : x
  2. Step 2: Convert to fraction form
    148,456.80/222,685.20 = 138,615.30/x
  3. Step 3: Cross multiply
    148,456.80x = 222,685.20 × 138,615.30
  4. Step 4: Simplify right side
    148,456.80x = 30,867,575,803.56
  5. Step 5: Solve for x
    x = 30,867,575,803.56/148,456.80
  6. Step 6: Final answer
    x = 207,922.95

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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.