Home / 209,469.64-289,069.42-113,977.04

Finding the Fourth Proportional to 209,469.64, 289,069.42 and 113,977.04

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Solution

The fourth proportional to 209,469.64, 289,069.42 and 113,977.04 is: 157,289.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,469.64 : 289,069.42 = 113,977.04 : x
  2. Step 2: Convert to fraction form
    209,469.64/289,069.42 = 113,977.04/x
  3. Step 3: Cross multiply
    209,469.64x = 289,069.42 × 113,977.04
  4. Step 4: Simplify right side
    209,469.64x = 32,947,276,846.12
  5. Step 5: Solve for x
    x = 32,947,276,846.12/209,469.64
  6. Step 6: Final answer
    x = 157,289.03

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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.