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Finding the Fourth Proportional to 101.93, 140.72 and 60.50

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Solution

The fourth proportional to 101.93, 140.72 and 60.50 is: 83.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.93 : 140.72 = 60.50 : x
  2. Step 2: Convert to fraction form
    101.93/140.72 = 60.50/x
  3. Step 3: Cross multiply
    101.93x = 140.72 × 60.50
  4. Step 4: Simplify right side
    101.93x = 8,513.26
  5. Step 5: Solve for x
    x = 8,513.26/101.93
  6. Step 6: Final answer
    x = 83.52

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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.