Home / 187,889.80-281,178.60-131,465.20

Finding the Fourth Proportional to 187,889.80, 281,178.60 and 131,465.20

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Solution

The fourth proportional to 187,889.80, 281,178.60 and 131,465.20 is: 196,738.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,889.80 : 281,178.60 = 131,465.20 : x
  2. Step 2: Convert to fraction form
    187,889.80/281,178.60 = 131,465.20/x
  3. Step 3: Cross multiply
    187,889.80x = 281,178.60 × 131,465.20
  4. Step 4: Simplify right side
    187,889.80x = 36,965,200,884.72
  5. Step 5: Solve for x
    x = 36,965,200,884.72/187,889.80
  6. Step 6: Final answer
    x = 196,738.73

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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.