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Finding the Fourth Proportional to 74.37, 101.88 and 74.19

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Solution

The fourth proportional to 74.37, 101.88 and 74.19 is: 101.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74.37 : 101.88 = 74.19 : x
  2. Step 2: Convert to fraction form
    74.37/101.88 = 74.19/x
  3. Step 3: Cross multiply
    74.37x = 101.88 × 74.19
  4. Step 4: Simplify right side
    74.37x = 7,558.48
  5. Step 5: Solve for x
    x = 7,558.48/74.37
  6. Step 6: Final answer
    x = 101.63

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.