Home / 161,331.33-222,637.42-89,709.82

Finding the Fourth Proportional to 161,331.33, 222,637.42 and 89,709.82

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Solution

The fourth proportional to 161,331.33, 222,637.42 and 89,709.82 is: 123,799.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,331.33 : 222,637.42 = 89,709.82 : x
  2. Step 2: Convert to fraction form
    161,331.33/222,637.42 = 89,709.82/x
  3. Step 3: Cross multiply
    161,331.33x = 222,637.42 × 89,709.82
  4. Step 4: Simplify right side
    161,331.33x = 19,972,762,873.46
  5. Step 5: Solve for x
    x = 19,972,762,873.46/161,331.33
  6. Step 6: Final answer
    x = 123,799.65

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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.