Home / 201,895.20-278,614.08-111,251.88

Finding the Fourth Proportional to 201,895.20, 278,614.08 and 111,251.88

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Solution

The fourth proportional to 201,895.20, 278,614.08 and 111,251.88 is: 153,526.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,895.20 : 278,614.08 = 111,251.88 : x
  2. Step 2: Convert to fraction form
    201,895.20/278,614.08 = 111,251.88/x
  3. Step 3: Cross multiply
    201,895.20x = 278,614.08 × 111,251.88
  4. Step 4: Simplify right side
    201,895.20x = 30,996,340,194.47
  5. Step 5: Solve for x
    x = 30,996,340,194.47/201,895.20
  6. Step 6: Final answer
    x = 153,526.88

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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.