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Finding the Fourth Proportional to 159,081, 219,351.42 and 101,644.44

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Solution

The fourth proportional to 159,081, 219,351.42 and 101,644.44 is: 140,154.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,081 : 219,351.42 = 101,644.44 : x
  2. Step 2: Convert to fraction form
    159,081/219,351.42 = 101,644.44/x
  3. Step 3: Cross multiply
    159,081x = 219,351.42 × 101,644.44
  4. Step 4: Simplify right side
    159,081x = 22,295,852,249.10
  5. Step 5: Solve for x
    x = 22,295,852,249.10/159,081
  6. Step 6: Final answer
    x = 140,154.09

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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.