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Finding the Fourth Proportional to 100,685.80, 151,046.91 and 41,488.54

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Solution

The fourth proportional to 100,685.80, 151,046.91 and 41,488.54 is: 62,240.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,685.80 : 151,046.91 = 41,488.54 : x
  2. Step 2: Convert to fraction form
    100,685.80/151,046.91 = 41,488.54/x
  3. Step 3: Cross multiply
    100,685.80x = 151,046.91 × 41,488.54
  4. Step 4: Simplify right side
    100,685.80x = 6,266,715,767.41
  5. Step 5: Solve for x
    x = 6,266,715,767.41/100,685.80
  6. Step 6: Final answer
    x = 62,240.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.