Home / 209,821.20-314,824.82-109,957.65

Finding the Fourth Proportional to 209,821.20, 314,824.82 and 109,957.65

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Solution

The fourth proportional to 209,821.20, 314,824.82 and 109,957.65 is: 164,985.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,821.20 : 314,824.82 = 109,957.65 : x
  2. Step 2: Convert to fraction form
    209,821.20/314,824.82 = 109,957.65/x
  3. Step 3: Cross multiply
    209,821.20x = 314,824.82 × 109,957.65
  4. Step 4: Simplify right side
    209,821.20x = 34,617,396,819.08
  5. Step 5: Solve for x
    x = 34,617,396,819.08/209,821.20
  6. Step 6: Final answer
    x = 164,985.22

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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.