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Finding the Fourth Proportional to 134.66, 186.00 and 88.19

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Solution

The fourth proportional to 134.66, 186.00 and 88.19 is: 121.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.66 : 186.00 = 88.19 : x
  2. Step 2: Convert to fraction form
    134.66/186.00 = 88.19/x
  3. Step 3: Cross multiply
    134.66x = 186.00 × 88.19
  4. Step 4: Simplify right side
    134.66x = 16,402.78
  5. Step 5: Solve for x
    x = 16,402.78/134.66
  6. Step 6: Final answer
    x = 121.81

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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.