Home / 187,416.24-281,290.68-87,630.72

Finding the Fourth Proportional to 187,416.24, 281,290.68 and 87,630.72

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Solution

The fourth proportional to 187,416.24, 281,290.68 and 87,630.72 is: 131,523.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,416.24 : 281,290.68 = 87,630.72 : x
  2. Step 2: Convert to fraction form
    187,416.24/281,290.68 = 87,630.72/x
  3. Step 3: Cross multiply
    187,416.24x = 281,290.68 × 87,630.72
  4. Step 4: Simplify right side
    187,416.24x = 24,649,704,817.69
  5. Step 5: Solve for x
    x = 24,649,704,817.69/187,416.24
  6. Step 6: Final answer
    x = 131,523.85

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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.