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Finding the Fourth Proportional to 94.98, 131.04 and 93.84

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Solution

The fourth proportional to 94.98, 131.04 and 93.84 is: 129.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.98 : 131.04 = 93.84 : x
  2. Step 2: Convert to fraction form
    94.98/131.04 = 93.84/x
  3. Step 3: Cross multiply
    94.98x = 131.04 × 93.84
  4. Step 4: Simplify right side
    94.98x = 12,296.79
  5. Step 5: Solve for x
    x = 12,296.79/94.98
  6. Step 6: Final answer
    x = 129.47

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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.