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Finding the Fourth Proportional to 127.29, 175.58 and 110.95

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Solution

The fourth proportional to 127.29, 175.58 and 110.95 is: 153.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127.29 : 175.58 = 110.95 : x
  2. Step 2: Convert to fraction form
    127.29/175.58 = 110.95/x
  3. Step 3: Cross multiply
    127.29x = 175.58 × 110.95
  4. Step 4: Simplify right side
    127.29x = 19,480.05
  5. Step 5: Solve for x
    x = 19,480.05/127.29
  6. Step 6: Final answer
    x = 153.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.