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Finding the Fourth Proportional to 100.91, 150.48 and 95.35

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Solution

The fourth proportional to 100.91, 150.48 and 95.35 is: 142.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100.91 : 150.48 = 95.35 : x
  2. Step 2: Convert to fraction form
    100.91/150.48 = 95.35/x
  3. Step 3: Cross multiply
    100.91x = 150.48 × 95.35
  4. Step 4: Simplify right side
    100.91x = 14,348.64
  5. Step 5: Solve for x
    x = 14,348.64/100.91
  6. Step 6: Final answer
    x = 142.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.