Home / 148,609.78-222,743-68,480.20

Finding the Fourth Proportional to 148,609.78, 222,743 and 68,480.20

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Solution

The fourth proportional to 148,609.78, 222,743 and 68,480.20 is: 102,641.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,609.78 : 222,743 = 68,480.20 : x
  2. Step 2: Convert to fraction form
    148,609.78/222,743 = 68,480.20/x
  3. Step 3: Cross multiply
    148,609.78x = 222,743 × 68,480.20
  4. Step 4: Simplify right side
    148,609.78x = 15,253,485,188.60
  5. Step 5: Solve for x
    x = 15,253,485,188.60/148,609.78
  6. Step 6: Final answer
    x = 102,641.19

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1.5x scale

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.