Home / 168,205.89-232,129.74-91,729.17

Finding the Fourth Proportional to 168,205.89, 232,129.74 and 91,729.17

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Solution

The fourth proportional to 168,205.89, 232,129.74 and 91,729.17 is: 126,589.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,205.89 : 232,129.74 = 91,729.17 : x
  2. Step 2: Convert to fraction form
    168,205.89/232,129.74 = 91,729.17/x
  3. Step 3: Cross multiply
    168,205.89x = 232,129.74 × 91,729.17
  4. Step 4: Simplify right side
    168,205.89x = 21,293,067,923.87
  5. Step 5: Solve for x
    x = 21,293,067,923.87/168,205.89
  6. Step 6: Final answer
    x = 126,589.31

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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.