Home / 168,764.20-253,146.30-109,666.60

Finding the Fourth Proportional to 168,764.20, 253,146.30 and 109,666.60

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Solution

The fourth proportional to 168,764.20, 253,146.30 and 109,666.60 is: 164,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,764.20 : 253,146.30 = 109,666.60 : x
  2. Step 2: Convert to fraction form
    168,764.20/253,146.30 = 109,666.60/x
  3. Step 3: Cross multiply
    168,764.20x = 253,146.30 × 109,666.60
  4. Step 4: Simplify right side
    168,764.20x = 27,761,694,023.58
  5. Step 5: Solve for x
    x = 27,761,694,023.58/168,764.20
  6. Step 6: Final answer
    x = 164,499.90

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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.