Home / 186,881.20-280,358.72-68,553.56

Finding the Fourth Proportional to 186,881.20, 280,358.72 and 68,553.56

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Solution

The fourth proportional to 186,881.20, 280,358.72 and 68,553.56 is: 102,843.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,881.20 : 280,358.72 = 68,553.56 : x
  2. Step 2: Convert to fraction form
    186,881.20/280,358.72 = 68,553.56/x
  3. Step 3: Cross multiply
    186,881.20x = 280,358.72 × 68,553.56
  4. Step 4: Simplify right side
    186,881.20x = 19,219,588,333.04
  5. Step 5: Solve for x
    x = 19,219,588,333.04/186,881.20
  6. Step 6: Final answer
    x = 102,843.88

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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.