Home / 168,104.28-231,983.98-91,623.40

Finding the Fourth Proportional to 168,104.28, 231,983.98 and 91,623.40

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Solution

The fourth proportional to 168,104.28, 231,983.98 and 91,623.40 is: 126,440.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,104.28 : 231,983.98 = 91,623.40 : x
  2. Step 2: Convert to fraction form
    168,104.28/231,983.98 = 91,623.40/x
  3. Step 3: Cross multiply
    168,104.28x = 231,983.98 × 91,623.40
  4. Step 4: Simplify right side
    168,104.28x = 21,255,160,993.13
  5. Step 5: Solve for x
    x = 21,255,160,993.13/168,104.28
  6. Step 6: Final answer
    x = 126,440.33

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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.