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Finding the Fourth Proportional to 109.24, 150.74 and 62.60

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Solution

The fourth proportional to 109.24, 150.74 and 62.60 is: 86.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    109.24 : 150.74 = 62.60 : x
  2. Step 2: Convert to fraction form
    109.24/150.74 = 62.60/x
  3. Step 3: Cross multiply
    109.24x = 150.74 × 62.60
  4. Step 4: Simplify right side
    109.24x = 9,436.32
  5. Step 5: Solve for x
    x = 9,436.32/109.24
  6. Step 6: Final answer
    x = 86.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.