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Finding the Fourth Proportional to 161,940, 223,507.44 and 94,872

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Solution

The fourth proportional to 161,940, 223,507.44 and 94,872 is: 130,941.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,940 : 223,507.44 = 94,872 : x
  2. Step 2: Convert to fraction form
    161,940/223,507.44 = 94,872/x
  3. Step 3: Cross multiply
    161,940x = 223,507.44 × 94,872
  4. Step 4: Simplify right side
    161,940x = 21,204,597,847.68
  5. Step 5: Solve for x
    x = 21,204,597,847.68/161,940
  6. Step 6: Final answer
    x = 130,941.08

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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.