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Finding the Fourth Proportional to 168,739.82, 232,864.64 and 100,744.12

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Solution

The fourth proportional to 168,739.82, 232,864.64 and 100,744.12 is: 139,029.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,739.82 : 232,864.64 = 100,744.12 : x
  2. Step 2: Convert to fraction form
    168,739.82/232,864.64 = 100,744.12/x
  3. Step 3: Cross multiply
    168,739.82x = 232,864.64 × 100,744.12
  4. Step 4: Simplify right side
    168,739.82x = 23,459,743,235.92
  5. Step 5: Solve for x
    x = 23,459,743,235.92/168,739.82
  6. Step 6: Final answer
    x = 139,029.09

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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.