Home / 115,619.20-173,633.60-84,489.60

Finding the Fourth Proportional to 115,619.20, 173,633.60 and 84,489.60

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Solution

The fourth proportional to 115,619.20, 173,633.60 and 84,489.60 is: 126,884.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,619.20 : 173,633.60 = 84,489.60 : x
  2. Step 2: Convert to fraction form
    115,619.20/173,633.60 = 84,489.60/x
  3. Step 3: Cross multiply
    115,619.20x = 173,633.60 × 84,489.60
  4. Step 4: Simplify right side
    115,619.20x = 14,670,233,410.56
  5. Step 5: Solve for x
    x = 14,670,233,410.56/115,619.20
  6. Step 6: Final answer
    x = 126,884.06

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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.