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Finding the Fourth Proportional to 133,615.58, 200,418.50 and 40,118.90

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Solution

The fourth proportional to 133,615.58, 200,418.50 and 40,118.90 is: 60,176.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,615.58 : 200,418.50 = 40,118.90 : x
  2. Step 2: Convert to fraction form
    133,615.58/200,418.50 = 40,118.90/x
  3. Step 3: Cross multiply
    133,615.58x = 200,418.50 × 40,118.90
  4. Step 4: Simplify right side
    133,615.58x = 8,040,568,556.96
  5. Step 5: Solve for x
    x = 8,040,568,556.96/133,615.58
  6. Step 6: Final answer
    x = 60,176.88

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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.