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Finding the Fourth Proportional to 96.01, 144.03 and 85.63

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Solution

The fourth proportional to 96.01, 144.03 and 85.63 is: 128.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.01 : 144.03 = 85.63 : x
  2. Step 2: Convert to fraction form
    96.01/144.03 = 85.63/x
  3. Step 3: Cross multiply
    96.01x = 144.03 × 85.63
  4. Step 4: Simplify right side
    96.01x = 12,333.29
  5. Step 5: Solve for x
    x = 12,333.29/96.01
  6. Step 6: Final answer
    x = 128.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.