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Finding the Fourth Proportional to 134.33, 186.36 and 127.64

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Solution

The fourth proportional to 134.33, 186.36 and 127.64 is: 177.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.33 : 186.36 = 127.64 : x
  2. Step 2: Convert to fraction form
    134.33/186.36 = 127.64/x
  3. Step 3: Cross multiply
    134.33x = 186.36 × 127.64
  4. Step 4: Simplify right side
    134.33x = 23,786.06
  5. Step 5: Solve for x
    x = 23,786.06/134.33
  6. Step 6: Final answer
    x = 177.08

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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.