Home / 140,905.11-194,445.03-80,474.50

Finding the Fourth Proportional to 140,905.11, 194,445.03 and 80,474.50

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Solution

The fourth proportional to 140,905.11, 194,445.03 and 80,474.50 is: 111,052.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,905.11 : 194,445.03 = 80,474.50 : x
  2. Step 2: Convert to fraction form
    140,905.11/194,445.03 = 80,474.50/x
  3. Step 3: Cross multiply
    140,905.11x = 194,445.03 × 80,474.50
  4. Step 4: Simplify right side
    140,905.11x = 15,647,866,566.74
  5. Step 5: Solve for x
    x = 15,647,866,566.74/140,905.11
  6. Step 6: Final answer
    x = 111,052.51

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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.