Home / 168,111.06-231,990.26-91,630.86

Finding the Fourth Proportional to 168,111.06, 231,990.26 and 91,630.86

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Solution

The fourth proportional to 168,111.06, 231,990.26 and 91,630.86 is: 126,448.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,111.06 : 231,990.26 = 91,630.86 : x
  2. Step 2: Convert to fraction form
    168,111.06/231,990.26 = 91,630.86/x
  3. Step 3: Cross multiply
    168,111.06x = 231,990.26 × 91,630.86
  4. Step 4: Simplify right side
    168,111.06x = 21,257,467,035.42
  5. Step 5: Solve for x
    x = 21,257,467,035.42/168,111.06
  6. Step 6: Final answer
    x = 126,448.95

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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.