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Finding the Fourth Proportional to 148,851.56, 205,414.44 and 80,868.08

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Solution

The fourth proportional to 148,851.56, 205,414.44 and 80,868.08 is: 111,597.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,851.56 : 205,414.44 = 80,868.08 : x
  2. Step 2: Convert to fraction form
    148,851.56/205,414.44 = 80,868.08/x
  3. Step 3: Cross multiply
    148,851.56x = 205,414.44 × 80,868.08
  4. Step 4: Simplify right side
    148,851.56x = 16,611,471,367.08
  5. Step 5: Solve for x
    x = 16,611,471,367.08/148,851.56
  6. Step 6: Final answer
    x = 111,597.56

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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.