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Finding the Fourth Proportional to 134.08, 200 and 119.76

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Solution

The fourth proportional to 134.08, 200 and 119.76 is: 178.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.08 : 200 = 119.76 : x
  2. Step 2: Convert to fraction form
    134.08/200 = 119.76/x
  3. Step 3: Cross multiply
    134.08x = 200 × 119.76
  4. Step 4: Simplify right side
    134.08x = 23,952
  5. Step 5: Solve for x
    x = 23,952/134.08
  6. Step 6: Final answer
    x = 178.64

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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.