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Finding the Fourth Proportional to 135.79, 188.12 and 132.60

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Solution

The fourth proportional to 135.79, 188.12 and 132.60 is: 183.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.79 : 188.12 = 132.60 : x
  2. Step 2: Convert to fraction form
    135.79/188.12 = 132.60/x
  3. Step 3: Cross multiply
    135.79x = 188.12 × 132.60
  4. Step 4: Simplify right side
    135.79x = 24,944.71
  5. Step 5: Solve for x
    x = 24,944.71/135.79
  6. Step 6: Final answer
    x = 183.70

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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.