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Finding the Fourth Proportional to 135.02, 185.44 and 120.44

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Solution

The fourth proportional to 135.02, 185.44 and 120.44 is: 165.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.02 : 185.44 = 120.44 : x
  2. Step 2: Convert to fraction form
    135.02/185.44 = 120.44/x
  3. Step 3: Cross multiply
    135.02x = 185.44 × 120.44
  4. Step 4: Simplify right side
    135.02x = 22,334.39
  5. Step 5: Solve for x
    x = 22,334.39/135.02
  6. Step 6: Final answer
    x = 165.42

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.