Home / 212,806.32-319,255.68-106,247.60

Finding the Fourth Proportional to 212,806.32, 319,255.68 and 106,247.60

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Solution

The fourth proportional to 212,806.32, 319,255.68 and 106,247.60 is: 159,394.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,806.32 : 319,255.68 = 106,247.60 : x
  2. Step 2: Convert to fraction form
    212,806.32/319,255.68 = 106,247.60/x
  3. Step 3: Cross multiply
    212,806.32x = 319,255.68 × 106,247.60
  4. Step 4: Simplify right side
    212,806.32x = 33,920,149,786.37
  5. Step 5: Solve for x
    x = 33,920,149,786.37/212,806.32
  6. Step 6: Final answer
    x = 159,394.47

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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.