Home / 168,115.77-231,998.29-91,634.87

Finding the Fourth Proportional to 168,115.77, 231,998.29 and 91,634.87

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Solution

The fourth proportional to 168,115.77, 231,998.29 and 91,634.87 is: 126,455.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,115.77 : 231,998.29 = 91,634.87 : x
  2. Step 2: Convert to fraction form
    168,115.77/231,998.29 = 91,634.87/x
  3. Step 3: Cross multiply
    168,115.77x = 231,998.29 × 91,634.87
  4. Step 4: Simplify right side
    168,115.77x = 21,259,133,495.28
  5. Step 5: Solve for x
    x = 21,259,133,495.28/168,115.77
  6. Step 6: Final answer
    x = 126,455.32

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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.