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Finding the Fourth Proportional to 136.10, 186.65 and 134.50

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Solution

The fourth proportional to 136.10, 186.65 and 134.50 is: 184.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.10 : 186.65 = 134.50 : x
  2. Step 2: Convert to fraction form
    136.10/186.65 = 134.50/x
  3. Step 3: Cross multiply
    136.10x = 186.65 × 134.50
  4. Step 4: Simplify right side
    136.10x = 25,104.29
  5. Step 5: Solve for x
    x = 25,104.29/136.10
  6. Step 6: Final answer
    x = 184.46

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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.