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Finding the Fourth Proportional to 191,195.56, 263,839.03 and 106,310.80

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Solution

The fourth proportional to 191,195.56, 263,839.03 and 106,310.80 is: 146,702.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,195.56 : 263,839.03 = 106,310.80 : x
  2. Step 2: Convert to fraction form
    191,195.56/263,839.03 = 106,310.80/x
  3. Step 3: Cross multiply
    191,195.56x = 263,839.03 × 106,310.80
  4. Step 4: Simplify right side
    191,195.56x = 28,048,938,350.52
  5. Step 5: Solve for x
    x = 28,048,938,350.52/191,195.56
  6. Step 6: Final answer
    x = 146,702.88

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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.