Home / 194,645.25-268,626.85-109,778.72

Finding the Fourth Proportional to 194,645.25, 268,626.85 and 109,778.72

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Solution

The fourth proportional to 194,645.25, 268,626.85 and 109,778.72 is: 151,503.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,645.25 : 268,626.85 = 109,778.72 : x
  2. Step 2: Convert to fraction form
    194,645.25/268,626.85 = 109,778.72/x
  3. Step 3: Cross multiply
    194,645.25x = 268,626.85 × 109,778.72
  4. Step 4: Simplify right side
    194,645.25x = 29,489,510,133.05
  5. Step 5: Solve for x
    x = 29,489,510,133.05/194,645.25
  6. Step 6: Final answer
    x = 151,503.88

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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.