Home / 102,781.38-154,169.82-47,377.38

Finding the Fourth Proportional to 102,781.38, 154,169.82 and 47,377.38

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Solution

The fourth proportional to 102,781.38, 154,169.82 and 47,377.38 is: 71,065.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,781.38 : 154,169.82 = 47,377.38 : x
  2. Step 2: Convert to fraction form
    102,781.38/154,169.82 = 47,377.38/x
  3. Step 3: Cross multiply
    102,781.38x = 154,169.82 × 47,377.38
  4. Step 4: Simplify right side
    102,781.38x = 7,304,162,146.67
  5. Step 5: Solve for x
    x = 7,304,162,146.67/102,781.38
  6. Step 6: Final answer
    x = 71,065.03

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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.