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Finding the Fourth Proportional to 134.72, 184.76 and 127.76

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Solution

The fourth proportional to 134.72, 184.76 and 127.76 is: 175.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.72 : 184.76 = 127.76 : x
  2. Step 2: Convert to fraction form
    134.72/184.76 = 127.76/x
  3. Step 3: Cross multiply
    134.72x = 184.76 × 127.76
  4. Step 4: Simplify right side
    134.72x = 23,604.94
  5. Step 5: Solve for x
    x = 23,604.94/134.72
  6. Step 6: Final answer
    x = 175.21

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.