Home / 259,739.25-389,647.83-91,229.88

Finding the Fourth Proportional to 259,739.25, 389,647.83 and 91,229.88

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Solution

The fourth proportional to 259,739.25, 389,647.83 and 91,229.88 is: 136,858.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,739.25 : 389,647.83 = 91,229.88 : x
  2. Step 2: Convert to fraction form
    259,739.25/389,647.83 = 91,229.88/x
  3. Step 3: Cross multiply
    259,739.25x = 389,647.83 × 91,229.88
  4. Step 4: Simplify right side
    259,739.25x = 35,547,524,773.16
  5. Step 5: Solve for x
    x = 35,547,524,773.16/259,739.25
  6. Step 6: Final answer
    x = 136,858.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.