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Finding the Fourth Proportional to 95.43, 143.05 and 46.65

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Solution

The fourth proportional to 95.43, 143.05 and 46.65 is: 69.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.43 : 143.05 = 46.65 : x
  2. Step 2: Convert to fraction form
    95.43/143.05 = 46.65/x
  3. Step 3: Cross multiply
    95.43x = 143.05 × 46.65
  4. Step 4: Simplify right side
    95.43x = 6,673.28
  5. Step 5: Solve for x
    x = 6,673.28/95.43
  6. Step 6: Final answer
    x = 69.93

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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.