Home / 168,029.49-231,878.55-91,551.75

Finding the Fourth Proportional to 168,029.49, 231,878.55 and 91,551.75

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Solution

The fourth proportional to 168,029.49, 231,878.55 and 91,551.75 is: 126,340.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,029.49 : 231,878.55 = 91,551.75 : x
  2. Step 2: Convert to fraction form
    168,029.49/231,878.55 = 91,551.75/x
  3. Step 3: Cross multiply
    168,029.49x = 231,878.55 × 91,551.75
  4. Step 4: Simplify right side
    168,029.49x = 21,228,887,039.96
  5. Step 5: Solve for x
    x = 21,228,887,039.96/168,029.49
  6. Step 6: Final answer
    x = 126,340.25

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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.