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Finding the Fourth Proportional to 134.08, 200 and 126.56

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Solution

The fourth proportional to 134.08, 200 and 126.56 is: 188.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.08 : 200 = 126.56 : x
  2. Step 2: Convert to fraction form
    134.08/200 = 126.56/x
  3. Step 3: Cross multiply
    134.08x = 200 × 126.56
  4. Step 4: Simplify right side
    134.08x = 25,312
  5. Step 5: Solve for x
    x = 25,312/134.08
  6. Step 6: Final answer
    x = 188.78

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1.5x scale

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.