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Finding the Fourth Proportional to 96.37, 143.86 and 83.41

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Solution

The fourth proportional to 96.37, 143.86 and 83.41 is: 124.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.37 : 143.86 = 83.41 : x
  2. Step 2: Convert to fraction form
    96.37/143.86 = 83.41/x
  3. Step 3: Cross multiply
    96.37x = 143.86 × 83.41
  4. Step 4: Simplify right side
    96.37x = 11,999.36
  5. Step 5: Solve for x
    x = 11,999.36/96.37
  6. Step 6: Final answer
    x = 124.51

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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.