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Finding the Fourth Proportional to 179,081.88, 268,602.32 and 66,765.78

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Solution

The fourth proportional to 179,081.88, 268,602.32 and 66,765.78 is: 100,141.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,081.88 : 268,602.32 = 66,765.78 : x
  2. Step 2: Convert to fraction form
    179,081.88/268,602.32 = 66,765.78/x
  3. Step 3: Cross multiply
    179,081.88x = 268,602.32 × 66,765.78
  4. Step 4: Simplify right side
    179,081.88x = 17,933,443,404.61
  5. Step 5: Solve for x
    x = 17,933,443,404.61/179,081.88
  6. Step 6: Final answer
    x = 100,141.03

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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.