Home / 113,882.45-170,953.28-67,161.65

Finding the Fourth Proportional to 113,882.45, 170,953.28 and 67,161.65

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Solution

The fourth proportional to 113,882.45, 170,953.28 and 67,161.65 is: 100,818.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,882.45 : 170,953.28 = 67,161.65 : x
  2. Step 2: Convert to fraction form
    113,882.45/170,953.28 = 67,161.65/x
  3. Step 3: Cross multiply
    113,882.45x = 170,953.28 × 67,161.65
  4. Step 4: Simplify right side
    113,882.45x = 11,481,504,021.90
  5. Step 5: Solve for x
    x = 11,481,504,021.90/113,882.45
  6. Step 6: Final answer
    x = 100,818.91

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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.