Home / 212,753.25-319,184.57-79,635.42

Finding the Fourth Proportional to 212,753.25, 319,184.57 and 79,635.42

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Solution

The fourth proportional to 212,753.25, 319,184.57 and 79,635.42 is: 119,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,753.25 : 319,184.57 = 79,635.42 : x
  2. Step 2: Convert to fraction form
    212,753.25/319,184.57 = 79,635.42/x
  3. Step 3: Cross multiply
    212,753.25x = 319,184.57 × 79,635.42
  4. Step 4: Simplify right side
    212,753.25x = 25,418,396,891.29
  5. Step 5: Solve for x
    x = 25,418,396,891.29/212,753.25
  6. Step 6: Final answer
    x = 119,473.60

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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.