Home / 205,880.24-308,219.40-126,757.04

Finding the Fourth Proportional to 205,880.24, 308,219.40 and 126,757.04

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Solution

The fourth proportional to 205,880.24, 308,219.40 and 126,757.04 is: 189,765.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,880.24 : 308,219.40 = 126,757.04 : x
  2. Step 2: Convert to fraction form
    205,880.24/308,219.40 = 126,757.04/x
  3. Step 3: Cross multiply
    205,880.24x = 308,219.40 × 126,757.04
  4. Step 4: Simplify right side
    205,880.24x = 39,068,978,814.58
  5. Step 5: Solve for x
    x = 39,068,978,814.58/205,880.24
  6. Step 6: Final answer
    x = 189,765.56

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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.