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Finding the Fourth Proportional to 101.37, 139.86 and 62.01

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Solution

The fourth proportional to 101.37, 139.86 and 62.01 is: 85.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.37 : 139.86 = 62.01 : x
  2. Step 2: Convert to fraction form
    101.37/139.86 = 62.01/x
  3. Step 3: Cross multiply
    101.37x = 139.86 × 62.01
  4. Step 4: Simplify right side
    101.37x = 8,672.72
  5. Step 5: Solve for x
    x = 8,672.72/101.37
  6. Step 6: Final answer
    x = 85.56

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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.