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Finding the Fourth Proportional to 161,379.34, 222,686.40 and 89,747.80

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Solution

The fourth proportional to 161,379.34, 222,686.40 and 89,747.80 is: 123,842.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,379.34 : 222,686.40 = 89,747.80 : x
  2. Step 2: Convert to fraction form
    161,379.34/222,686.40 = 89,747.80/x
  3. Step 3: Cross multiply
    161,379.34x = 222,686.40 × 89,747.80
  4. Step 4: Simplify right side
    161,379.34x = 19,985,614,489.92
  5. Step 5: Solve for x
    x = 19,985,614,489.92/161,379.34
  6. Step 6: Final answer
    x = 123,842.46

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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.