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Finding the Fourth Proportional to 135.11, 186.32 and 93.51

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Solution

The fourth proportional to 135.11, 186.32 and 93.51 is: 128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.11 : 186.32 = 93.51 : x
  2. Step 2: Convert to fraction form
    135.11/186.32 = 93.51/x
  3. Step 3: Cross multiply
    135.11x = 186.32 × 93.51
  4. Step 4: Simplify right side
    135.11x = 17,423.02
  5. Step 5: Solve for x
    x = 17,423.02/135.11
  6. Step 6: Final answer
    x = 128.95

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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.