Home / 161,046.42-222,236.64-89,431.02

Finding the Fourth Proportional to 161,046.42, 222,236.64 and 89,431.02

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Solution

The fourth proportional to 161,046.42, 222,236.64 and 89,431.02 is: 123,410.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,046.42 : 222,236.64 = 89,431.02 : x
  2. Step 2: Convert to fraction form
    161,046.42/222,236.64 = 89,431.02/x
  3. Step 3: Cross multiply
    161,046.42x = 222,236.64 × 89,431.02
  4. Step 4: Simplify right side
    161,046.42x = 19,874,849,396.57
  5. Step 5: Solve for x
    x = 19,874,849,396.57/161,046.42
  6. Step 6: Final answer
    x = 123,410.69

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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.