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Finding the Fourth Proportional to 159,171.20, 238,867.20 and 119,811.20

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Solution

The fourth proportional to 159,171.20, 238,867.20 and 119,811.20 is: 179,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,171.20 : 238,867.20 = 119,811.20 : x
  2. Step 2: Convert to fraction form
    159,171.20/238,867.20 = 119,811.20/x
  3. Step 3: Cross multiply
    159,171.20x = 238,867.20 × 119,811.20
  4. Step 4: Simplify right side
    159,171.20x = 28,618,965,872.64
  5. Step 5: Solve for x
    x = 28,618,965,872.64/159,171.20
  6. Step 6: Final answer
    x = 179,799.90

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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.