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Finding the Fourth Proportional to 161,538.60, 222,930.60 and 89,923.16

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Solution

The fourth proportional to 161,538.60, 222,930.60 and 89,923.16 is: 124,098.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,538.60 : 222,930.60 = 89,923.16 : x
  2. Step 2: Convert to fraction form
    161,538.60/222,930.60 = 89,923.16/x
  3. Step 3: Cross multiply
    161,538.60x = 222,930.60 × 89,923.16
  4. Step 4: Simplify right side
    161,538.60x = 20,046,622,898.04
  5. Step 5: Solve for x
    x = 20,046,622,898.04/161,538.60
  6. Step 6: Final answer
    x = 124,098.04

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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.