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Finding the Fourth Proportional to 95.63, 131.93 and 89.10

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Solution

The fourth proportional to 95.63, 131.93 and 89.10 is: 122.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.63 : 131.93 = 89.10 : x
  2. Step 2: Convert to fraction form
    95.63/131.93 = 89.10/x
  3. Step 3: Cross multiply
    95.63x = 131.93 × 89.10
  4. Step 4: Simplify right side
    95.63x = 11,754.96
  5. Step 5: Solve for x
    x = 11,754.96/95.63
  6. Step 6: Final answer
    x = 122.92

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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.