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Finding the Fourth Proportional to 105.52, 157.24 and 101.60

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Solution

The fourth proportional to 105.52, 157.24 and 101.60 is: 151.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105.52 : 157.24 = 101.60 : x
  2. Step 2: Convert to fraction form
    105.52/157.24 = 101.60/x
  3. Step 3: Cross multiply
    105.52x = 157.24 × 101.60
  4. Step 4: Simplify right side
    105.52x = 15,975.58
  5. Step 5: Solve for x
    x = 15,975.58/105.52
  6. Step 6: Final answer
    x = 151.40

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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.