Home / 187,786.50-281,680.11-45,631.91

Finding the Fourth Proportional to 187,786.50, 281,680.11 and 45,631.91

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Solution

The fourth proportional to 187,786.50, 281,680.11 and 45,631.91 is: 68,447.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,786.50 : 281,680.11 = 45,631.91 : x
  2. Step 2: Convert to fraction form
    187,786.50/281,680.11 = 45,631.91/x
  3. Step 3: Cross multiply
    187,786.50x = 281,680.11 × 45,631.91
  4. Step 4: Simplify right side
    187,786.50x = 12,853,600,019.91
  5. Step 5: Solve for x
    x = 12,853,600,019.91/187,786.50
  6. Step 6: Final answer
    x = 68,447.94

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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.