Home / 161,129.21-222,350.75-89,513.60

Finding the Fourth Proportional to 161,129.21, 222,350.75 and 89,513.60

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Solution

The fourth proportional to 161,129.21, 222,350.75 and 89,513.60 is: 123,524.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,129.21 : 222,350.75 = 89,513.60 : x
  2. Step 2: Convert to fraction form
    161,129.21/222,350.75 = 89,513.60/x
  3. Step 3: Cross multiply
    161,129.21x = 222,350.75 × 89,513.60
  4. Step 4: Simplify right side
    161,129.21x = 19,903,414,535.88
  5. Step 5: Solve for x
    x = 19,903,414,535.88/161,129.21
  6. Step 6: Final answer
    x = 123,524.56

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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.