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Finding the Fourth Proportional to 136.83, 188.62 and 97.47

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Solution

The fourth proportional to 136.83, 188.62 and 97.47 is: 134.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.83 : 188.62 = 97.47 : x
  2. Step 2: Convert to fraction form
    136.83/188.62 = 97.47/x
  3. Step 3: Cross multiply
    136.83x = 188.62 × 97.47
  4. Step 4: Simplify right side
    136.83x = 18,385.11
  5. Step 5: Solve for x
    x = 18,385.11/136.83
  6. Step 6: Final answer
    x = 134.37

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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.