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Finding the Fourth Proportional to 161,412.29, 222,616.31 and 143,276.25

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Solution

The fourth proportional to 161,412.29, 222,616.31 and 143,276.25 is: 197,603.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,412.29 : 222,616.31 = 143,276.25 : x
  2. Step 2: Convert to fraction form
    161,412.29/222,616.31 = 143,276.25/x
  3. Step 3: Cross multiply
    161,412.29x = 222,616.31 × 143,276.25
  4. Step 4: Simplify right side
    161,412.29x = 31,895,629,369.26
  5. Step 5: Solve for x
    x = 31,895,629,369.26/161,412.29
  6. Step 6: Final answer
    x = 197,603.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.