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Finding the Fourth Proportional to 161,226, 222,495.66 and 89,609.04

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Solution

The fourth proportional to 161,226, 222,495.66 and 89,609.04 is: 123,662.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,226 : 222,495.66 = 89,609.04 : x
  2. Step 2: Convert to fraction form
    161,226/222,495.66 = 89,609.04/x
  3. Step 3: Cross multiply
    161,226x = 222,495.66 × 89,609.04
  4. Step 4: Simplify right side
    161,226x = 19,937,622,496.77
  5. Step 5: Solve for x
    x = 19,937,622,496.77/161,226
  6. Step 6: Final answer
    x = 123,662.58

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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.