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Finding the Fourth Proportional to 102.64, 151.84 and 102.64

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Solution

The fourth proportional to 102.64, 151.84 and 102.64 is: 151.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102.64 : 151.84 = 102.64 : x
  2. Step 2: Convert to fraction form
    102.64/151.84 = 102.64/x
  3. Step 3: Cross multiply
    102.64x = 151.84 × 102.64
  4. Step 4: Simplify right side
    102.64x = 15,584.86
  5. Step 5: Solve for x
    x = 15,584.86/102.64
  6. Step 6: Final answer
    x = 151.84

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.