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Finding the Fourth Proportional to 133.83, 185.54 and 125.55

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Solution

The fourth proportional to 133.83, 185.54 and 125.55 is: 174.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.83 : 185.54 = 125.55 : x
  2. Step 2: Convert to fraction form
    133.83/185.54 = 125.55/x
  3. Step 3: Cross multiply
    133.83x = 185.54 × 125.55
  4. Step 4: Simplify right side
    133.83x = 23,293.92
  5. Step 5: Solve for x
    x = 23,293.92/133.83
  6. Step 6: Final answer
    x = 174.06

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.