Home / 161,331.47-222,637.62-89,709.96

Finding the Fourth Proportional to 161,331.47, 222,637.62 and 89,709.96

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Solution

The fourth proportional to 161,331.47, 222,637.62 and 89,709.96 is: 123,799.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,331.47 : 222,637.62 = 89,709.96 : x
  2. Step 2: Convert to fraction form
    161,331.47/222,637.62 = 89,709.96/x
  3. Step 3: Cross multiply
    161,331.47x = 222,637.62 × 89,709.96
  4. Step 4: Simplify right side
    161,331.47x = 19,972,811,984.70
  5. Step 5: Solve for x
    x = 19,972,811,984.70/161,331.47
  6. Step 6: Final answer
    x = 123,799.85

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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.