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Finding the Fourth Proportional to 95.60, 143.62 and 61.43

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Solution

The fourth proportional to 95.60, 143.62 and 61.43 is: 92.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.60 : 143.62 = 61.43 : x
  2. Step 2: Convert to fraction form
    95.60/143.62 = 61.43/x
  3. Step 3: Cross multiply
    95.60x = 143.62 × 61.43
  4. Step 4: Simplify right side
    95.60x = 8,822.09
  5. Step 5: Solve for x
    x = 8,822.09/95.60
  6. Step 6: Final answer
    x = 92.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.