Home / 272,682.30-409,082.10-135,979.90

Finding the Fourth Proportional to 272,682.30, 409,082.10 and 135,979.90

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Solution

The fourth proportional to 272,682.30, 409,082.10 and 135,979.90 is: 203,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,682.30 : 409,082.10 = 135,979.90 : x
  2. Step 2: Convert to fraction form
    272,682.30/409,082.10 = 135,979.90/x
  3. Step 3: Cross multiply
    272,682.30x = 409,082.10 × 135,979.90
  4. Step 4: Simplify right side
    272,682.30x = 55,626,943,049.79
  5. Step 5: Solve for x
    x = 55,626,943,049.79/272,682.30
  6. Step 6: Final answer
    x = 203,999.10

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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.