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Finding the Fourth Proportional to 135.33, 187.62 and 127.05

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Solution

The fourth proportional to 135.33, 187.62 and 127.05 is: 176.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.33 : 187.62 = 127.05 : x
  2. Step 2: Convert to fraction form
    135.33/187.62 = 127.05/x
  3. Step 3: Cross multiply
    135.33x = 187.62 × 127.05
  4. Step 4: Simplify right side
    135.33x = 23,837.12
  5. Step 5: Solve for x
    x = 23,837.12/135.33
  6. Step 6: Final answer
    x = 176.14

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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.