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Finding the Fourth Proportional to 135.96, 186.64 and 125.02

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Solution

The fourth proportional to 135.96, 186.64 and 125.02 is: 171.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.96 : 186.64 = 125.02 : x
  2. Step 2: Convert to fraction form
    135.96/186.64 = 125.02/x
  3. Step 3: Cross multiply
    135.96x = 186.64 × 125.02
  4. Step 4: Simplify right side
    135.96x = 23,333.11
  5. Step 5: Solve for x
    x = 23,333.11/135.96
  6. Step 6: Final answer
    x = 171.62

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.