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Finding the Fourth Proportional to 95.16, 143.36 and 83.10

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Solution

The fourth proportional to 95.16, 143.36 and 83.10 is: 125.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.16 : 143.36 = 83.10 : x
  2. Step 2: Convert to fraction form
    95.16/143.36 = 83.10/x
  3. Step 3: Cross multiply
    95.16x = 143.36 × 83.10
  4. Step 4: Simplify right side
    95.16x = 11,912.80
  5. Step 5: Solve for x
    x = 11,912.80/95.16
  6. Step 6: Final answer
    x = 125.19

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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.