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Finding the Fourth Proportional to 134.88, 203.31 and 127.02

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Solution

The fourth proportional to 134.88, 203.31 and 127.02 is: 191.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.88 : 203.31 = 127.02 : x
  2. Step 2: Convert to fraction form
    134.88/203.31 = 127.02/x
  3. Step 3: Cross multiply
    134.88x = 203.31 × 127.02
  4. Step 4: Simplify right side
    134.88x = 25,824.44
  5. Step 5: Solve for x
    x = 25,824.44/134.88
  6. Step 6: Final answer
    x = 191.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.