Home / 194,821.20-268,856.82-109,921.86

Finding the Fourth Proportional to 194,821.20, 268,856.82 and 109,921.86

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Solution

The fourth proportional to 194,821.20, 268,856.82 and 109,921.86 is: 151,694.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,821.20 : 268,856.82 = 109,921.86 : x
  2. Step 2: Convert to fraction form
    194,821.20/268,856.82 = 109,921.86/x
  3. Step 3: Cross multiply
    194,821.20x = 268,856.82 × 109,921.86
  4. Step 4: Simplify right side
    194,821.20x = 29,553,241,728.09
  5. Step 5: Solve for x
    x = 29,553,241,728.09/194,821.20
  6. Step 6: Final answer
    x = 151,694.18

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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.