Home / 161,161.35-222,171.71-113,266.05

Finding the Fourth Proportional to 161,161.35, 222,171.71 and 113,266.05

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Solution

The fourth proportional to 161,161.35, 222,171.71 and 113,266.05 is: 156,144.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,161.35 : 222,171.71 = 113,266.05 : x
  2. Step 2: Convert to fraction form
    161,161.35/222,171.71 = 113,266.05/x
  3. Step 3: Cross multiply
    161,161.35x = 222,171.71 × 113,266.05
  4. Step 4: Simplify right side
    161,161.35x = 25,164,511,251.09
  5. Step 5: Solve for x
    x = 25,164,511,251.09/161,161.35
  6. Step 6: Final answer
    x = 156,144.83

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1.5x scale

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.