Home / 167,919.41-231,551.20-129,685.19

Finding the Fourth Proportional to 167,919.41, 231,551.20 and 129,685.19

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Solution

The fourth proportional to 167,919.41, 231,551.20 and 129,685.19 is: 178,828.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,919.41 : 231,551.20 = 129,685.19 : x
  2. Step 2: Convert to fraction form
    167,919.41/231,551.20 = 129,685.19/x
  3. Step 3: Cross multiply
    167,919.41x = 231,551.20 × 129,685.19
  4. Step 4: Simplify right side
    167,919.41x = 30,028,760,371.08
  5. Step 5: Solve for x
    x = 30,028,760,371.08/167,919.41
  6. Step 6: Final answer
    x = 178,828.40

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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.