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Finding the Fourth Proportional to 161,181, 222,425.37 and 89,559.18

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Solution

The fourth proportional to 161,181, 222,425.37 and 89,559.18 is: 123,589.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,181 : 222,425.37 = 89,559.18 : x
  2. Step 2: Convert to fraction form
    161,181/222,425.37 = 89,559.18/x
  3. Step 3: Cross multiply
    161,181x = 222,425.37 × 89,559.18
  4. Step 4: Simplify right side
    161,181x = 19,920,233,748.40
  5. Step 5: Solve for x
    x = 19,920,233,748.40/161,181
  6. Step 6: Final answer
    x = 123,589.22

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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.