Home / 140,972.98-194,517.84-80,535.28

Finding the Fourth Proportional to 140,972.98, 194,517.84 and 80,535.28

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Solution

The fourth proportional to 140,972.98, 194,517.84 and 80,535.28 is: 111,124.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,972.98 : 194,517.84 = 80,535.28 : x
  2. Step 2: Convert to fraction form
    140,972.98/194,517.84 = 80,535.28/x
  3. Step 3: Cross multiply
    140,972.98x = 194,517.84 × 80,535.28
  4. Step 4: Simplify right side
    140,972.98x = 15,665,548,709.40
  5. Step 5: Solve for x
    x = 15,665,548,709.40/140,972.98
  6. Step 6: Final answer
    x = 111,124.48

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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.