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Finding the Fourth Proportional to 95.83, 132.26 and 89.64

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Solution

The fourth proportional to 95.83, 132.26 and 89.64 is: 123.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.83 : 132.26 = 89.64 : x
  2. Step 2: Convert to fraction form
    95.83/132.26 = 89.64/x
  3. Step 3: Cross multiply
    95.83x = 132.26 × 89.64
  4. Step 4: Simplify right side
    95.83x = 11,855.34
  5. Step 5: Solve for x
    x = 11,855.34/95.83
  6. Step 6: Final answer
    x = 123.72

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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.