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Finding the Fourth Proportional to 101,617.62, 140,201.73 and 65,849.64

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Solution

The fourth proportional to 101,617.62, 140,201.73 and 65,849.64 is: 90,852.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,617.62 : 140,201.73 = 65,849.64 : x
  2. Step 2: Convert to fraction form
    101,617.62/140,201.73 = 65,849.64/x
  3. Step 3: Cross multiply
    101,617.62x = 140,201.73 × 65,849.64
  4. Step 4: Simplify right side
    101,617.62x = 9,232,233,447.88
  5. Step 5: Solve for x
    x = 9,232,233,447.88/101,617.62
  6. Step 6: Final answer
    x = 90,852.68

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1.5x scale

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.