Home / 212,750.75-319,180.82-79,632.92

Finding the Fourth Proportional to 212,750.75, 319,180.82 and 79,632.92

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Solution

The fourth proportional to 212,750.75, 319,180.82 and 79,632.92 is: 119,469.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,750.75 : 319,180.82 = 79,632.92 : x
  2. Step 2: Convert to fraction form
    212,750.75/319,180.82 = 79,632.92/x
  3. Step 3: Cross multiply
    212,750.75x = 319,180.82 × 79,632.92
  4. Step 4: Simplify right side
    212,750.75x = 25,417,300,704.59
  5. Step 5: Solve for x
    x = 25,417,300,704.59/212,750.75
  6. Step 6: Final answer
    x = 119,469.85

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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.