Home / 212,761.60-319,215.30-94,517.80

Finding the Fourth Proportional to 212,761.60, 319,215.30 and 94,517.80

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Solution

The fourth proportional to 212,761.60, 319,215.30 and 94,517.80 is: 141,809.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,761.60 : 319,215.30 = 94,517.80 : x
  2. Step 2: Convert to fraction form
    212,761.60/319,215.30 = 94,517.80/x
  3. Step 3: Cross multiply
    212,761.60x = 319,215.30 × 94,517.80
  4. Step 4: Simplify right side
    212,761.60x = 30,171,527,882.34
  5. Step 5: Solve for x
    x = 30,171,527,882.34/212,761.60
  6. Step 6: Final answer
    x = 141,809.09

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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.