Home / 148,721.20-222,433.80-133,039.60

Finding the Fourth Proportional to 148,721.20, 222,433.80 and 133,039.60

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Solution

The fourth proportional to 148,721.20, 222,433.80 and 133,039.60 is: 198,979.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,721.20 : 222,433.80 = 133,039.60 : x
  2. Step 2: Convert to fraction form
    148,721.20/222,433.80 = 133,039.60/x
  3. Step 3: Cross multiply
    148,721.20x = 222,433.80 × 133,039.60
  4. Step 4: Simplify right side
    148,721.20x = 29,592,503,778.48
  5. Step 5: Solve for x
    x = 29,592,503,778.48/148,721.20
  6. Step 6: Final answer
    x = 198,979.73

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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.