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Finding the Fourth Proportional to 137, 204.44 and 126.16

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Solution

The fourth proportional to 137, 204.44 and 126.16 is: 188.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    137 : 204.44 = 126.16 : x
  2. Step 2: Convert to fraction form
    137/204.44 = 126.16/x
  3. Step 3: Cross multiply
    137x = 204.44 × 126.16
  4. Step 4: Simplify right side
    137x = 25,792.15
  5. Step 5: Solve for x
    x = 25,792.15/137
  6. Step 6: Final answer
    x = 188.26

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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.