Home / 261,910.11-392,536.49-111,974.18

Finding the Fourth Proportional to 261,910.11, 392,536.49 and 111,974.18

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Solution

The fourth proportional to 261,910.11, 392,536.49 and 111,974.18 is: 167,820.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,910.11 : 392,536.49 = 111,974.18 : x
  2. Step 2: Convert to fraction form
    261,910.11/392,536.49 = 111,974.18/x
  3. Step 3: Cross multiply
    261,910.11x = 392,536.49 × 111,974.18
  4. Step 4: Simplify right side
    261,910.11x = 43,953,949,065.27
  5. Step 5: Solve for x
    x = 43,953,949,065.27/261,910.11
  6. Step 6: Final answer
    x = 167,820.74

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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.