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Finding the Fourth Proportional to 94.48, 131.28 and 93.32

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Solution

The fourth proportional to 94.48, 131.28 and 93.32 is: 129.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.48 : 131.28 = 93.32 : x
  2. Step 2: Convert to fraction form
    94.48/131.28 = 93.32/x
  3. Step 3: Cross multiply
    94.48x = 131.28 × 93.32
  4. Step 4: Simplify right side
    94.48x = 12,251.05
  5. Step 5: Solve for x
    x = 12,251.05/94.48
  6. Step 6: Final answer
    x = 129.67

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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.