Home / 161,383.12-222,719.84-89,769.81

Finding the Fourth Proportional to 161,383.12, 222,719.84 and 89,769.81

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Solution

The fourth proportional to 161,383.12, 222,719.84 and 89,769.81 is: 123,888.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,383.12 : 222,719.84 = 89,769.81 : x
  2. Step 2: Convert to fraction form
    161,383.12/222,719.84 = 89,769.81/x
  3. Step 3: Cross multiply
    161,383.12x = 222,719.84 × 89,769.81
  4. Step 4: Simplify right side
    161,383.12x = 19,993,517,720.03
  5. Step 5: Solve for x
    x = 19,993,517,720.03/161,383.12
  6. Step 6: Final answer
    x = 123,888.53

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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.