Home / 113,821.72-170,319.42-82,294.90

Finding the Fourth Proportional to 113,821.72, 170,319.42 and 82,294.90

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Solution

The fourth proportional to 113,821.72, 170,319.42 and 82,294.90 is: 123,143.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,821.72 : 170,319.42 = 82,294.90 : x
  2. Step 2: Convert to fraction form
    113,821.72/170,319.42 = 82,294.90/x
  3. Step 3: Cross multiply
    113,821.72x = 170,319.42 × 82,294.90
  4. Step 4: Simplify right side
    113,821.72x = 14,016,419,636.96
  5. Step 5: Solve for x
    x = 14,016,419,636.96/113,821.72
  6. Step 6: Final answer
    x = 123,143.63

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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.