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Finding the Fourth Proportional to 100.99, 152.12 and 95.20

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Solution

The fourth proportional to 100.99, 152.12 and 95.20 is: 143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100.99 : 152.12 = 95.20 : x
  2. Step 2: Convert to fraction form
    100.99/152.12 = 95.20/x
  3. Step 3: Cross multiply
    100.99x = 152.12 × 95.20
  4. Step 4: Simplify right side
    100.99x = 14,481.59
  5. Step 5: Solve for x
    x = 14,481.59/100.99
  6. Step 6: Final answer
    x = 143.40

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.