Home / 117,179.04-161,709.84-66,882.72

Finding the Fourth Proportional to 117,179.04, 161,709.84 and 66,882.72

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Solution

The fourth proportional to 117,179.04, 161,709.84 and 66,882.72 is: 92,299.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,179.04 : 161,709.84 = 66,882.72 : x
  2. Step 2: Convert to fraction form
    117,179.04/161,709.84 = 66,882.72/x
  3. Step 3: Cross multiply
    117,179.04x = 161,709.84 × 66,882.72
  4. Step 4: Simplify right side
    117,179.04x = 10,815,593,949.96
  5. Step 5: Solve for x
    x = 10,815,593,949.96/117,179.04
  6. Step 6: Final answer
    x = 92,299.73

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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.