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Finding the Fourth Proportional to 131,480.96, 181,284.96 and 91,229.12

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Solution

The fourth proportional to 131,480.96, 181,284.96 and 91,229.12 is: 125,786.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,480.96 : 181,284.96 = 91,229.12 : x
  2. Step 2: Convert to fraction form
    131,480.96/181,284.96 = 91,229.12/x
  3. Step 3: Cross multiply
    131,480.96x = 181,284.96 × 91,229.12
  4. Step 4: Simplify right side
    131,480.96x = 16,538,467,370.04
  5. Step 5: Solve for x
    x = 16,538,467,370.04/131,480.96
  6. Step 6: Final answer
    x = 125,786.03

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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.