Home / 206,669.25-309,715.07-111,694.68

Finding the Fourth Proportional to 206,669.25, 309,715.07 and 111,694.68

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Solution

The fourth proportional to 206,669.25, 309,715.07 and 111,694.68 is: 167,385.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,669.25 : 309,715.07 = 111,694.68 : x
  2. Step 2: Convert to fraction form
    206,669.25/309,715.07 = 111,694.68/x
  3. Step 3: Cross multiply
    206,669.25x = 309,715.07 × 111,694.68
  4. Step 4: Simplify right side
    206,669.25x = 34,593,525,076.35
  5. Step 5: Solve for x
    x = 34,593,525,076.35/206,669.25
  6. Step 6: Final answer
    x = 167,385.93

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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.