Home / 100,858.03-151,286.91-29,781.61

Finding the Fourth Proportional to 100,858.03, 151,286.91 and 29,781.61

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Solution

The fourth proportional to 100,858.03, 151,286.91 and 29,781.61 is: 44,672.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,858.03 : 151,286.91 = 29,781.61 : x
  2. Step 2: Convert to fraction form
    100,858.03/151,286.91 = 29,781.61/x
  3. Step 3: Cross multiply
    100,858.03x = 151,286.91 × 29,781.61
  4. Step 4: Simplify right side
    100,858.03x = 4,505,567,751.73
  5. Step 5: Solve for x
    x = 4,505,567,751.73/100,858.03
  6. Step 6: Final answer
    x = 44,672.38

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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.