Home / 181,981.88-251,063.39-121,591.97

Finding the Fourth Proportional to 181,981.88, 251,063.39 and 121,591.97

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Solution

The fourth proportional to 181,981.88, 251,063.39 and 121,591.97 is: 167,749.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,981.88 : 251,063.39 = 121,591.97 : x
  2. Step 2: Convert to fraction form
    181,981.88/251,063.39 = 121,591.97/x
  3. Step 3: Cross multiply
    181,981.88x = 251,063.39 × 121,591.97
  4. Step 4: Simplify right side
    181,981.88x = 30,527,290,321.70
  5. Step 5: Solve for x
    x = 30,527,290,321.70/181,981.88
  6. Step 6: Final answer
    x = 167,749.07

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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.