Home / 168,819.35-253,229.03-68,979.45

Finding the Fourth Proportional to 168,819.35, 253,229.03 and 68,979.45

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Solution

The fourth proportional to 168,819.35, 253,229.03 and 68,979.45 is: 103,469.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,819.35 : 253,229.03 = 68,979.45 : x
  2. Step 2: Convert to fraction form
    168,819.35/253,229.03 = 68,979.45/x
  3. Step 3: Cross multiply
    168,819.35x = 253,229.03 × 68,979.45
  4. Step 4: Simplify right side
    168,819.35x = 17,467,598,868.54
  5. Step 5: Solve for x
    x = 17,467,598,868.54/168,819.35
  6. Step 6: Final answer
    x = 103,469.17

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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.