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Finding the Fourth Proportional to 96.48, 145.26 and 83.25

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Solution

The fourth proportional to 96.48, 145.26 and 83.25 is: 125.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.48 : 145.26 = 83.25 : x
  2. Step 2: Convert to fraction form
    96.48/145.26 = 83.25/x
  3. Step 3: Cross multiply
    96.48x = 145.26 × 83.25
  4. Step 4: Simplify right side
    96.48x = 12,092.90
  5. Step 5: Solve for x
    x = 12,092.90/96.48
  6. Step 6: Final answer
    x = 125.34

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.