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Finding the Fourth Proportional to 136.93, 189.90 and 132.07

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Solution

The fourth proportional to 136.93, 189.90 and 132.07 is: 183.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.93 : 189.90 = 132.07 : x
  2. Step 2: Convert to fraction form
    136.93/189.90 = 132.07/x
  3. Step 3: Cross multiply
    136.93x = 189.90 × 132.07
  4. Step 4: Simplify right side
    136.93x = 25,080.09
  5. Step 5: Solve for x
    x = 25,080.09/136.93
  6. Step 6: Final answer
    x = 183.16

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Why These Related Problems?

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