Home / 171,517.66-257,512.12-87,334.36

Finding the Fourth Proportional to 171,517.66, 257,512.12 and 87,334.36

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Solution

The fourth proportional to 171,517.66, 257,512.12 and 87,334.36 is: 131,121.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,517.66 : 257,512.12 = 87,334.36 : x
  2. Step 2: Convert to fraction form
    171,517.66/257,512.12 = 87,334.36/x
  3. Step 3: Cross multiply
    171,517.66x = 257,512.12 × 87,334.36
  4. Step 4: Simplify right side
    171,517.66x = 22,489,655,330.33
  5. Step 5: Solve for x
    x = 22,489,655,330.33/171,517.66
  6. Step 6: Final answer
    x = 131,121.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.