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Finding the Fourth Proportional to 141.13, 194.72 and 92.07

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Solution

The fourth proportional to 141.13, 194.72 and 92.07 is: 127.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.13 : 194.72 = 92.07 : x
  2. Step 2: Convert to fraction form
    141.13/194.72 = 92.07/x
  3. Step 3: Cross multiply
    141.13x = 194.72 × 92.07
  4. Step 4: Simplify right side
    141.13x = 17,928.10
  5. Step 5: Solve for x
    x = 17,928.10/141.13
  6. Step 6: Final answer
    x = 127.03

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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.