Home / 161,084.17-222,320.39-115,911.69

Finding the Fourth Proportional to 161,084.17, 222,320.39 and 115,911.69

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Solution

The fourth proportional to 161,084.17, 222,320.39 and 115,911.69 is: 159,975.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,084.17 : 222,320.39 = 115,911.69 : x
  2. Step 2: Convert to fraction form
    161,084.17/222,320.39 = 115,911.69/x
  3. Step 3: Cross multiply
    161,084.17x = 222,320.39 × 115,911.69
  4. Step 4: Simplify right side
    161,084.17x = 25,769,530,713.10
  5. Step 5: Solve for x
    x = 25,769,530,713.10/161,084.17
  6. Step 6: Final answer
    x = 159,975.56

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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.