Home / 168,736.56-253,229.18-79,989.72

Finding the Fourth Proportional to 168,736.56, 253,229.18 and 79,989.72

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Solution

The fourth proportional to 168,736.56, 253,229.18 and 79,989.72 is: 120,043.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,736.56 : 253,229.18 = 79,989.72 : x
  2. Step 2: Convert to fraction form
    168,736.56/253,229.18 = 79,989.72/x
  3. Step 3: Cross multiply
    168,736.56x = 253,229.18 × 79,989.72
  4. Step 4: Simplify right side
    168,736.56x = 20,255,731,204.03
  5. Step 5: Solve for x
    x = 20,255,731,204.03/168,736.56
  6. Step 6: Final answer
    x = 120,043.52

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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.