Home / 161,185.12-222,418.84-89,557.22

Finding the Fourth Proportional to 161,185.12, 222,418.84 and 89,557.22

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Solution

The fourth proportional to 161,185.12, 222,418.84 and 89,557.22 is: 123,579.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,185.12 : 222,418.84 = 89,557.22 : x
  2. Step 2: Convert to fraction form
    161,185.12/222,418.84 = 89,557.22/x
  3. Step 3: Cross multiply
    161,185.12x = 222,418.84 × 89,557.22
  4. Step 4: Simplify right side
    161,185.12x = 19,919,212,986.02
  5. Step 5: Solve for x
    x = 19,919,212,986.02/161,185.12
  6. Step 6: Final answer
    x = 123,579.73

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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.