Home / 161,943.09-223,481.79-90,327.75

Finding the Fourth Proportional to 161,943.09, 223,481.79 and 90,327.75

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Solution

The fourth proportional to 161,943.09, 223,481.79 and 90,327.75 is: 124,652.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,943.09 : 223,481.79 = 90,327.75 : x
  2. Step 2: Convert to fraction form
    161,943.09/223,481.79 = 90,327.75/x
  3. Step 3: Cross multiply
    161,943.09x = 223,481.79 × 90,327.75
  4. Step 4: Simplify right side
    161,943.09x = 20,186,606,805.03
  5. Step 5: Solve for x
    x = 20,186,606,805.03/161,943.09
  6. Step 6: Final answer
    x = 124,652.47

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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.