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Finding the Fourth Proportional to 99.08, 148.42 and 60.44

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Solution

The fourth proportional to 99.08, 148.42 and 60.44 is: 90.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99.08 : 148.42 = 60.44 : x
  2. Step 2: Convert to fraction form
    99.08/148.42 = 60.44/x
  3. Step 3: Cross multiply
    99.08x = 148.42 × 60.44
  4. Step 4: Simplify right side
    99.08x = 8,970.50
  5. Step 5: Solve for x
    x = 8,970.50/99.08
  6. Step 6: Final answer
    x = 90.54

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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.