Home / 136,195.20-204,446.40-80,822.40

Finding the Fourth Proportional to 136,195.20, 204,446.40 and 80,822.40

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Solution

The fourth proportional to 136,195.20, 204,446.40 and 80,822.40 is: 121,324.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,195.20 : 204,446.40 = 80,822.40 : x
  2. Step 2: Convert to fraction form
    136,195.20/204,446.40 = 80,822.40/x
  3. Step 3: Cross multiply
    136,195.20x = 204,446.40 × 80,822.40
  4. Step 4: Simplify right side
    136,195.20x = 16,523,848,719.36
  5. Step 5: Solve for x
    x = 16,523,848,719.36/136,195.20
  6. Step 6: Final answer
    x = 121,324.75

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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.