Home / 140,724.20-194,198.01-76,193.12

Finding the Fourth Proportional to 140,724.20, 194,198.01 and 76,193.12

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Solution

The fourth proportional to 140,724.20, 194,198.01 and 76,193.12 is: 105,145.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,724.20 : 194,198.01 = 76,193.12 : x
  2. Step 2: Convert to fraction form
    140,724.20/194,198.01 = 76,193.12/x
  3. Step 3: Cross multiply
    140,724.20x = 194,198.01 × 76,193.12
  4. Step 4: Simplify right side
    140,724.20x = 14,796,552,279.69
  5. Step 5: Solve for x
    x = 14,796,552,279.69/140,724.20
  6. Step 6: Final answer
    x = 105,145.76

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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.