Home / 167,686.20-231,404.64-91,203.64

Finding the Fourth Proportional to 167,686.20, 231,404.64 and 91,203.64

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Solution

The fourth proportional to 167,686.20, 231,404.64 and 91,203.64 is: 125,859.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,686.20 : 231,404.64 = 91,203.64 : x
  2. Step 2: Convert to fraction form
    167,686.20/231,404.64 = 91,203.64/x
  3. Step 3: Cross multiply
    167,686.20x = 231,404.64 × 91,203.64
  4. Step 4: Simplify right side
    167,686.20x = 21,104,945,480.89
  5. Step 5: Solve for x
    x = 21,104,945,480.89/167,686.20
  6. Step 6: Final answer
    x = 125,859.76

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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.