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Finding the Fourth Proportional to 101,622, 140,242.68 and 59,173.68

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Solution

The fourth proportional to 101,622, 140,242.68 and 59,173.68 is: 81,662.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,622 : 140,242.68 = 59,173.68 : x
  2. Step 2: Convert to fraction form
    101,622/140,242.68 = 59,173.68/x
  3. Step 3: Cross multiply
    101,622x = 140,242.68 × 59,173.68
  4. Step 4: Simplify right side
    101,622x = 8,298,675,468.66
  5. Step 5: Solve for x
    x = 8,298,675,468.66/101,622
  6. Step 6: Final answer
    x = 81,662.19

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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.