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Finding the Fourth Proportional to 102,793.22, 154,172.15 and 27,919.40

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Solution

The fourth proportional to 102,793.22, 154,172.15 and 27,919.40 is: 41,874.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,793.22 : 154,172.15 = 27,919.40 : x
  2. Step 2: Convert to fraction form
    102,793.22/154,172.15 = 27,919.40/x
  3. Step 3: Cross multiply
    102,793.22x = 154,172.15 × 27,919.40
  4. Step 4: Simplify right side
    102,793.22x = 4,304,394,379.94
  5. Step 5: Solve for x
    x = 4,304,394,379.94/102,793.22
  6. Step 6: Final answer
    x = 41,874.30

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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.