Home / 261,975.33-392,634.41-112,039.61

Finding the Fourth Proportional to 261,975.33, 392,634.41 and 112,039.61

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Solution

The fourth proportional to 261,975.33, 392,634.41 and 112,039.61 is: 167,918.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,975.33 : 392,634.41 = 112,039.61 : x
  2. Step 2: Convert to fraction form
    261,975.33/392,634.41 = 112,039.61/x
  3. Step 3: Cross multiply
    261,975.33x = 392,634.41 × 112,039.61
  4. Step 4: Simplify right side
    261,975.33x = 43,990,603,645.61
  5. Step 5: Solve for x
    x = 43,990,603,645.61/261,975.33
  6. Step 6: Final answer
    x = 167,918.88

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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.