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Finding the Fourth Proportional to 168,042, 252,103.56 and 48,100.80

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Solution

The fourth proportional to 168,042, 252,103.56 and 48,100.80 is: 72,162.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,042 : 252,103.56 = 48,100.80 : x
  2. Step 2: Convert to fraction form
    168,042/252,103.56 = 48,100.80/x
  3. Step 3: Cross multiply
    168,042x = 252,103.56 × 48,100.80
  4. Step 4: Simplify right side
    168,042x = 12,126,382,918.85
  5. Step 5: Solve for x
    x = 12,126,382,918.85/168,042
  6. Step 6: Final answer
    x = 72,162.81

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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.