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Finding the Fourth Proportional to 134.51, 200.34 and 126.08

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Solution

The fourth proportional to 134.51, 200.34 and 126.08 is: 187.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.51 : 200.34 = 126.08 : x
  2. Step 2: Convert to fraction form
    134.51/200.34 = 126.08/x
  3. Step 3: Cross multiply
    134.51x = 200.34 × 126.08
  4. Step 4: Simplify right side
    134.51x = 25,257.87
  5. Step 5: Solve for x
    x = 25,257.87/134.51
  6. Step 6: Final answer
    x = 187.78

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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.