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Finding the Fourth Proportional to 95.28, 130.63 and 93.64

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Solution

The fourth proportional to 95.28, 130.63 and 93.64 is: 128.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.28 : 130.63 = 93.64 : x
  2. Step 2: Convert to fraction form
    95.28/130.63 = 93.64/x
  3. Step 3: Cross multiply
    95.28x = 130.63 × 93.64
  4. Step 4: Simplify right side
    95.28x = 12,232.19
  5. Step 5: Solve for x
    x = 12,232.19/95.28
  6. Step 6: Final answer
    x = 128.38

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.