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Finding the Fourth Proportional to 132.83, 199.70 and 92.43

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Solution

The fourth proportional to 132.83, 199.70 and 92.43 is: 138.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.83 : 199.70 = 92.43 : x
  2. Step 2: Convert to fraction form
    132.83/199.70 = 92.43/x
  3. Step 3: Cross multiply
    132.83x = 199.70 × 92.43
  4. Step 4: Simplify right side
    132.83x = 18,458.27
  5. Step 5: Solve for x
    x = 18,458.27/132.83
  6. Step 6: Final answer
    x = 138.96

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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.