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Finding the Fourth Proportional to 161,469.87, 222,828.37 and 89,854.53

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Solution

The fourth proportional to 161,469.87, 222,828.37 and 89,854.53 is: 123,999.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,469.87 : 222,828.37 = 89,854.53 : x
  2. Step 2: Convert to fraction form
    161,469.87/222,828.37 = 89,854.53/x
  3. Step 3: Cross multiply
    161,469.87x = 222,828.37 × 89,854.53
  4. Step 4: Simplify right side
    161,469.87x = 20,022,138,457.02
  5. Step 5: Solve for x
    x = 20,022,138,457.02/161,469.87
  6. Step 6: Final answer
    x = 123,999.22

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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.