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Finding the Fourth Proportional to 97.94, 135.80 and 94.83

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Solution

The fourth proportional to 97.94, 135.80 and 94.83 is: 131.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.94 : 135.80 = 94.83 : x
  2. Step 2: Convert to fraction form
    97.94/135.80 = 94.83/x
  3. Step 3: Cross multiply
    97.94x = 135.80 × 94.83
  4. Step 4: Simplify right side
    97.94x = 12,877.44
  5. Step 5: Solve for x
    x = 12,877.44/97.94
  6. Step 6: Final answer
    x = 131.49

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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.