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Finding the Fourth Proportional to 95.22, 143.57 and 89.34

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Solution

The fourth proportional to 95.22, 143.57 and 89.34 is: 134.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.22 : 143.57 = 89.34 : x
  2. Step 2: Convert to fraction form
    95.22/143.57 = 89.34/x
  3. Step 3: Cross multiply
    95.22x = 143.57 × 89.34
  4. Step 4: Simplify right side
    95.22x = 12,826.10
  5. Step 5: Solve for x
    x = 12,826.10/95.22
  6. Step 6: Final answer
    x = 134.70

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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.