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Finding the Fourth Proportional to 96.32, 144.30 and 70.60

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Solution

The fourth proportional to 96.32, 144.30 and 70.60 is: 105.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.32 : 144.30 = 70.60 : x
  2. Step 2: Convert to fraction form
    96.32/144.30 = 70.60/x
  3. Step 3: Cross multiply
    96.32x = 144.30 × 70.60
  4. Step 4: Simplify right side
    96.32x = 10,187.58
  5. Step 5: Solve for x
    x = 10,187.58/96.32
  6. Step 6: Final answer
    x = 105.77

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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.