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Finding the Fourth Proportional to 148,065.25, 204,334.92 and 80,997.25

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Solution

The fourth proportional to 148,065.25, 204,334.92 and 80,997.25 is: 111,778.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,065.25 : 204,334.92 = 80,997.25 : x
  2. Step 2: Convert to fraction form
    148,065.25/204,334.92 = 80,997.25/x
  3. Step 3: Cross multiply
    148,065.25x = 204,334.92 × 80,997.25
  4. Step 4: Simplify right side
    148,065.25x = 16,550,566,598.97
  5. Step 5: Solve for x
    x = 16,550,566,598.97/148,065.25
  6. Step 6: Final answer
    x = 111,778.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.