Home / 121,067.45-167,072.27-66,622.92

Finding the Fourth Proportional to 121,067.45, 167,072.27 and 66,622.92

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Solution

The fourth proportional to 121,067.45, 167,072.27 and 66,622.92 is: 91,939.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,067.45 : 167,072.27 = 66,622.92 : x
  2. Step 2: Convert to fraction form
    121,067.45/167,072.27 = 66,622.92/x
  3. Step 3: Cross multiply
    121,067.45x = 167,072.27 × 66,622.92
  4. Step 4: Simplify right side
    121,067.45x = 11,130,842,145.31
  5. Step 5: Solve for x
    x = 11,130,842,145.31/121,067.45
  6. Step 6: Final answer
    x = 91,939.18

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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.