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Finding the Fourth Proportional to 161,427, 222,758.40 and 89,804.40

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Solution

The fourth proportional to 161,427, 222,758.40 and 89,804.40 is: 123,924.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,427 : 222,758.40 = 89,804.40 : x
  2. Step 2: Convert to fraction form
    161,427/222,758.40 = 89,804.40/x
  3. Step 3: Cross multiply
    161,427x = 222,758.40 × 89,804.40
  4. Step 4: Simplify right side
    161,427x = 20,004,684,456.96
  5. Step 5: Solve for x
    x = 20,004,684,456.96/161,427
  6. Step 6: Final answer
    x = 123,924.03

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1.5x scale

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.