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Finding the Fourth Proportional to 102.32, 152.80 and 96.32

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Solution

The fourth proportional to 102.32, 152.80 and 96.32 is: 143.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102.32 : 152.80 = 96.32 : x
  2. Step 2: Convert to fraction form
    102.32/152.80 = 96.32/x
  3. Step 3: Cross multiply
    102.32x = 152.80 × 96.32
  4. Step 4: Simplify right side
    102.32x = 14,717.70
  5. Step 5: Solve for x
    x = 14,717.70/102.32
  6. Step 6: Final answer
    x = 143.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.