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Finding the Fourth Proportional to 95.73, 132.15 and 89.58

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Solution

The fourth proportional to 95.73, 132.15 and 89.58 is: 123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.73 : 132.15 = 89.58 : x
  2. Step 2: Convert to fraction form
    95.73/132.15 = 89.58/x
  3. Step 3: Cross multiply
    95.73x = 132.15 × 89.58
  4. Step 4: Simplify right side
    95.73x = 11,838.00
  5. Step 5: Solve for x
    x = 11,838.00/95.73
  6. Step 6: Final answer
    x = 123.66

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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.