Home / 212,769.38-319,226.97-72,626.42

Finding the Fourth Proportional to 212,769.38, 319,226.97 and 72,626.42

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Solution

The fourth proportional to 212,769.38, 319,226.97 and 72,626.42 is: 108,964.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,769.38 : 319,226.97 = 72,626.42 : x
  2. Step 2: Convert to fraction form
    212,769.38/319,226.97 = 72,626.42/x
  3. Step 3: Cross multiply
    212,769.38x = 319,226.97 × 72,626.42
  4. Step 4: Simplify right side
    212,769.38x = 23,184,313,068.96
  5. Step 5: Solve for x
    x = 23,184,313,068.96/212,769.38
  6. Step 6: Final answer
    x = 108,964.52

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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.