Home / 168,540.05-252,712.26-79,792.80

Finding the Fourth Proportional to 168,540.05, 252,712.26 and 79,792.80

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Solution

The fourth proportional to 168,540.05, 252,712.26 and 79,792.80 is: 119,642.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,540.05 : 252,712.26 = 79,792.80 : x
  2. Step 2: Convert to fraction form
    168,540.05/252,712.26 = 79,792.80/x
  3. Step 3: Cross multiply
    168,540.05x = 252,712.26 × 79,792.80
  4. Step 4: Simplify right side
    168,540.05x = 20,164,618,819.73
  5. Step 5: Solve for x
    x = 20,164,618,819.73/168,540.05
  6. Step 6: Final answer
    x = 119,642.89

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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.