Home / 115,942.80-173,914.20-108,109.20

Finding the Fourth Proportional to 115,942.80, 173,914.20 and 108,109.20

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Solution

The fourth proportional to 115,942.80, 173,914.20 and 108,109.20 is: 162,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,942.80 : 173,914.20 = 108,109.20 : x
  2. Step 2: Convert to fraction form
    115,942.80/173,914.20 = 108,109.20/x
  3. Step 3: Cross multiply
    115,942.80x = 173,914.20 × 108,109.20
  4. Step 4: Simplify right side
    115,942.80x = 18,801,725,030.64
  5. Step 5: Solve for x
    x = 18,801,725,030.64/115,942.80
  6. Step 6: Final answer
    x = 162,163.80

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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.