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Finding the Fourth Proportional to 161,298.20, 222,578.88 and 89,673.88

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Solution

The fourth proportional to 161,298.20, 222,578.88 and 89,673.88 is: 123,742.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,298.20 : 222,578.88 = 89,673.88 : x
  2. Step 2: Convert to fraction form
    161,298.20/222,578.88 = 89,673.88/x
  3. Step 3: Cross multiply
    161,298.20x = 222,578.88 × 89,673.88
  4. Step 4: Simplify right side
    161,298.20x = 19,959,511,775.65
  5. Step 5: Solve for x
    x = 19,959,511,775.65/161,298.20
  6. Step 6: Final answer
    x = 123,742.93

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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.