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Finding the Fourth Proportional to 141.51, 196.26 and 136.89

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Solution

The fourth proportional to 141.51, 196.26 and 136.89 is: 189.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.51 : 196.26 = 136.89 : x
  2. Step 2: Convert to fraction form
    141.51/196.26 = 136.89/x
  3. Step 3: Cross multiply
    141.51x = 196.26 × 136.89
  4. Step 4: Simplify right side
    141.51x = 26,865.52
  5. Step 5: Solve for x
    x = 26,865.52/141.51
  6. Step 6: Final answer
    x = 189.84

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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.