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Finding the Fourth Proportional to 115,471.20, 173,206.80 and 73,480.80

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Solution

The fourth proportional to 115,471.20, 173,206.80 and 73,480.80 is: 110,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,471.20 : 173,206.80 = 73,480.80 : x
  2. Step 2: Convert to fraction form
    115,471.20/173,206.80 = 73,480.80/x
  3. Step 3: Cross multiply
    115,471.20x = 173,206.80 × 73,480.80
  4. Step 4: Simplify right side
    115,471.20x = 12,727,374,229.44
  5. Step 5: Solve for x
    x = 12,727,374,229.44/115,471.20
  6. Step 6: Final answer
    x = 110,221.20

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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.