Home / 161,120.82-222,346.62-89,507.52

Finding the Fourth Proportional to 161,120.82, 222,346.62 and 89,507.52

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Solution

The fourth proportional to 161,120.82, 222,346.62 and 89,507.52 is: 123,520.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,120.82 : 222,346.62 = 89,507.52 : x
  2. Step 2: Convert to fraction form
    161,120.82/222,346.62 = 89,507.52/x
  3. Step 3: Cross multiply
    161,120.82x = 222,346.62 × 89,507.52
  4. Step 4: Simplify right side
    161,120.82x = 19,901,694,536.58
  5. Step 5: Solve for x
    x = 19,901,694,536.58/161,120.82
  6. Step 6: Final answer
    x = 123,520.32

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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.