Home / 161,968.31-223,517.72-89,374.43

Finding the Fourth Proportional to 161,968.31, 223,517.72 and 89,374.43

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Solution

The fourth proportional to 161,968.31, 223,517.72 and 89,374.43 is: 123,337.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,968.31 : 223,517.72 = 89,374.43 : x
  2. Step 2: Convert to fraction form
    161,968.31/223,517.72 = 89,374.43/x
  3. Step 3: Cross multiply
    161,968.31x = 223,517.72 × 89,374.43
  4. Step 4: Simplify right side
    161,968.31x = 19,976,769,382.13
  5. Step 5: Solve for x
    x = 19,976,769,382.13/161,968.31
  6. Step 6: Final answer
    x = 123,337.52

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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.