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Finding the Fourth Proportional to 134.02, 199.68 and 127.03

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Solution

The fourth proportional to 134.02, 199.68 and 127.03 is: 189.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.02 : 199.68 = 127.03 : x
  2. Step 2: Convert to fraction form
    134.02/199.68 = 127.03/x
  3. Step 3: Cross multiply
    134.02x = 199.68 × 127.03
  4. Step 4: Simplify right side
    134.02x = 25,365.35
  5. Step 5: Solve for x
    x = 25,365.35/134.02
  6. Step 6: Final answer
    x = 189.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.