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Finding the Fourth Proportional to 95.34, 143.02 and 70.98

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Solution

The fourth proportional to 95.34, 143.02 and 70.98 is: 106.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.34 : 143.02 = 70.98 : x
  2. Step 2: Convert to fraction form
    95.34/143.02 = 70.98/x
  3. Step 3: Cross multiply
    95.34x = 143.02 × 70.98
  4. Step 4: Simplify right side
    95.34x = 10,151.56
  5. Step 5: Solve for x
    x = 10,151.56/95.34
  6. Step 6: Final answer
    x = 106.48

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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.