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Finding the Fourth Proportional to 199,717.79, 275,609.15 and 109,073.78

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Solution

The fourth proportional to 199,717.79, 275,609.15 and 109,073.78 is: 150,521.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,717.79 : 275,609.15 = 109,073.78 : x
  2. Step 2: Convert to fraction form
    199,717.79/275,609.15 = 109,073.78/x
  3. Step 3: Cross multiply
    199,717.79x = 275,609.15 × 109,073.78
  4. Step 4: Simplify right side
    199,717.79x = 30,061,731,793.09
  5. Step 5: Solve for x
    x = 30,061,731,793.09/199,717.79
  6. Step 6: Final answer
    x = 150,521.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.