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Finding the Fourth Proportional to 151.45, 208.76 and 96.09

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Solution

The fourth proportional to 151.45, 208.76 and 96.09 is: 132.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.45 : 208.76 = 96.09 : x
  2. Step 2: Convert to fraction form
    151.45/208.76 = 96.09/x
  3. Step 3: Cross multiply
    151.45x = 208.76 × 96.09
  4. Step 4: Simplify right side
    151.45x = 20,058.49
  5. Step 5: Solve for x
    x = 20,058.49/151.45
  6. Step 6: Final answer
    x = 132.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.