Home / 206,299.08-309,452.94-66,057.30

Finding the Fourth Proportional to 206,299.08, 309,452.94 and 66,057.30

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Solution

The fourth proportional to 206,299.08, 309,452.94 and 66,057.30 is: 99,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,299.08 : 309,452.94 = 66,057.30 : x
  2. Step 2: Convert to fraction form
    206,299.08/309,452.94 = 66,057.30/x
  3. Step 3: Cross multiply
    206,299.08x = 309,452.94 × 66,057.30
  4. Step 4: Simplify right side
    206,299.08x = 20,441,625,693.46
  5. Step 5: Solve for x
    x = 20,441,625,693.46/206,299.08
  6. Step 6: Final answer
    x = 99,087.33

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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.