Home / 140,903.11-194,442.27-80,472.50

Finding the Fourth Proportional to 140,903.11, 194,442.27 and 80,472.50

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Solution

The fourth proportional to 140,903.11, 194,442.27 and 80,472.50 is: 111,049.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,903.11 : 194,442.27 = 80,472.50 : x
  2. Step 2: Convert to fraction form
    140,903.11/194,442.27 = 80,472.50/x
  3. Step 3: Cross multiply
    140,903.11x = 194,442.27 × 80,472.50
  4. Step 4: Simplify right side
    140,903.11x = 15,647,256,574.15
  5. Step 5: Solve for x
    x = 15,647,256,574.15/140,903.11
  6. Step 6: Final answer
    x = 111,049.76

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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.