Home / 161,638.31-222,843.42-113,175.05

Finding the Fourth Proportional to 161,638.31, 222,843.42 and 113,175.05

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Solution

The fourth proportional to 161,638.31, 222,843.42 and 113,175.05 is: 156,029.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,638.31 : 222,843.42 = 113,175.05 : x
  2. Step 2: Convert to fraction form
    161,638.31/222,843.42 = 113,175.05/x
  3. Step 3: Cross multiply
    161,638.31x = 222,843.42 × 113,175.05
  4. Step 4: Simplify right side
    161,638.31x = 25,220,315,200.67
  5. Step 5: Solve for x
    x = 25,220,315,200.67/161,638.31
  6. Step 6: Final answer
    x = 156,029.32

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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.