Home / 212,864.82-319,000.68-107,560.86

Finding the Fourth Proportional to 212,864.82, 319,000.68 and 107,560.86

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Solution

The fourth proportional to 212,864.82, 319,000.68 and 107,560.86 is: 161,191.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,864.82 : 319,000.68 = 107,560.86 : x
  2. Step 2: Convert to fraction form
    212,864.82/319,000.68 = 107,560.86/x
  3. Step 3: Cross multiply
    212,864.82x = 319,000.68 × 107,560.86
  4. Step 4: Simplify right side
    212,864.82x = 34,311,987,481.38
  5. Step 5: Solve for x
    x = 34,311,987,481.38/212,864.82
  6. Step 6: Final answer
    x = 161,191.44

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1.5x scale

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.