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Finding the Fourth Proportional to 79,162.60, 118,743.90 and 19,998.44

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Solution

The fourth proportional to 79,162.60, 118,743.90 and 19,998.44 is: 29,997.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,162.60 : 118,743.90 = 19,998.44 : x
  2. Step 2: Convert to fraction form
    79,162.60/118,743.90 = 19,998.44/x
  3. Step 3: Cross multiply
    79,162.60x = 118,743.90 × 19,998.44
  4. Step 4: Simplify right side
    79,162.60x = 2,374,692,759.52
  5. Step 5: Solve for x
    x = 2,374,692,759.52/79,162.60
  6. Step 6: Final answer
    x = 29,997.66

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Similar ratio
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1.5x scale

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.