Home / 168,808.92-253,139.52-80,087.76

Finding the Fourth Proportional to 168,808.92, 253,139.52 and 80,087.76

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Solution

The fourth proportional to 168,808.92, 253,139.52 and 80,087.76 is: 120,096.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,808.92 : 253,139.52 = 80,087.76 : x
  2. Step 2: Convert to fraction form
    168,808.92/253,139.52 = 80,087.76/x
  3. Step 3: Cross multiply
    168,808.92x = 253,139.52 × 80,087.76
  4. Step 4: Simplify right side
    168,808.92x = 20,273,377,124.28
  5. Step 5: Solve for x
    x = 20,273,377,124.28/168,808.92
  6. Step 6: Final answer
    x = 120,096.60

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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.