Home / 135,213.30-202,431.15-82,725.30

Finding the Fourth Proportional to 135,213.30, 202,431.15 and 82,725.30

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Solution

The fourth proportional to 135,213.30, 202,431.15 and 82,725.30 is: 123,850.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,213.30 : 202,431.15 = 82,725.30 : x
  2. Step 2: Convert to fraction form
    135,213.30/202,431.15 = 82,725.30/x
  3. Step 3: Cross multiply
    135,213.30x = 202,431.15 × 82,725.30
  4. Step 4: Simplify right side
    135,213.30x = 16,746,177,613.10
  5. Step 5: Solve for x
    x = 16,746,177,613.10/135,213.30
  6. Step 6: Final answer
    x = 123,850.08

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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.