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Finding the Fourth Proportional to 165,379.70, 247,872.62 and 115,188.14

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Solution

The fourth proportional to 165,379.70, 247,872.62 and 115,188.14 is: 172,645.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,379.70 : 247,872.62 = 115,188.14 : x
  2. Step 2: Convert to fraction form
    165,379.70/247,872.62 = 115,188.14/x
  3. Step 3: Cross multiply
    165,379.70x = 247,872.62 × 115,188.14
  4. Step 4: Simplify right side
    165,379.70x = 28,551,986,054.73
  5. Step 5: Solve for x
    x = 28,551,986,054.73/165,379.70
  6. Step 6: Final answer
    x = 172,645.05

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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.