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Finding the Fourth Proportional to 135.94, 187.55 and 135.33

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Solution

The fourth proportional to 135.94, 187.55 and 135.33 is: 186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.94 : 187.55 = 135.33 : x
  2. Step 2: Convert to fraction form
    135.94/187.55 = 135.33/x
  3. Step 3: Cross multiply
    135.94x = 187.55 × 135.33
  4. Step 4: Simplify right side
    135.94x = 25,380.46
  5. Step 5: Solve for x
    x = 25,380.46/135.94
  6. Step 6: Final answer
    x = 186.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.