Home / 187,823.92-281,768.67-82,640.15

Finding the Fourth Proportional to 187,823.92, 281,768.67 and 82,640.15

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Solution

The fourth proportional to 187,823.92, 281,768.67 and 82,640.15 is: 123,974.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,823.92 : 281,768.67 = 82,640.15 : x
  2. Step 2: Convert to fraction form
    187,823.92/281,768.67 = 82,640.15/x
  3. Step 3: Cross multiply
    187,823.92x = 281,768.67 × 82,640.15
  4. Step 4: Simplify right side
    187,823.92x = 23,285,405,154.10
  5. Step 5: Solve for x
    x = 23,285,405,154.10/187,823.92
  6. Step 6: Final answer
    x = 123,974.66

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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.