Home / 205,943.20-308,914.80-126,227.05

Finding the Fourth Proportional to 205,943.20, 308,914.80 and 126,227.05

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Solution

The fourth proportional to 205,943.20, 308,914.80 and 126,227.05 is: 189,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,943.20 : 308,914.80 = 126,227.05 : x
  2. Step 2: Convert to fraction form
    205,943.20/308,914.80 = 126,227.05/x
  3. Step 3: Cross multiply
    205,943.20x = 308,914.80 × 126,227.05
  4. Step 4: Simplify right side
    205,943.20x = 38,993,403,905.34
  5. Step 5: Solve for x
    x = 38,993,403,905.34/205,943.20
  6. Step 6: Final answer
    x = 189,340.58

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1.5x scale

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.