Home / 212,944.50-319,470.75-79,825.14

Finding the Fourth Proportional to 212,944.50, 319,470.75 and 79,825.14

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Solution

The fourth proportional to 212,944.50, 319,470.75 and 79,825.14 is: 119,757.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,944.50 : 319,470.75 = 79,825.14 : x
  2. Step 2: Convert to fraction form
    212,944.50/319,470.75 = 79,825.14/x
  3. Step 3: Cross multiply
    212,944.50x = 319,470.75 × 79,825.14
  4. Step 4: Simplify right side
    212,944.50x = 25,501,797,344.66
  5. Step 5: Solve for x
    x = 25,501,797,344.66/212,944.50
  6. Step 6: Final answer
    x = 119,757.95

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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.