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Finding the Fourth Proportional to 141.93, 196.16 and 127.08

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Solution

The fourth proportional to 141.93, 196.16 and 127.08 is: 175.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.93 : 196.16 = 127.08 : x
  2. Step 2: Convert to fraction form
    141.93/196.16 = 127.08/x
  3. Step 3: Cross multiply
    141.93x = 196.16 × 127.08
  4. Step 4: Simplify right side
    141.93x = 24,927.38
  5. Step 5: Solve for x
    x = 24,927.38/141.93
  6. Step 6: Final answer
    x = 175.63

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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.