Home / 209,469.80-289,074.47-113,982.64

Finding the Fourth Proportional to 209,469.80, 289,074.47 and 113,982.64

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Solution

The fourth proportional to 209,469.80, 289,074.47 and 113,982.64 is: 157,299.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,469.80 : 289,074.47 = 113,982.64 : x
  2. Step 2: Convert to fraction form
    209,469.80/289,074.47 = 113,982.64/x
  3. Step 3: Cross multiply
    209,469.80x = 289,074.47 × 113,982.64
  4. Step 4: Simplify right side
    209,469.80x = 32,949,472,221.80
  5. Step 5: Solve for x
    x = 32,949,472,221.80/209,469.80
  6. Step 6: Final answer
    x = 157,299.39

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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.