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Finding the Fourth Proportional to 161,301.50, 222,596.07 and 90,645.50

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Solution

The fourth proportional to 161,301.50, 222,596.07 and 90,645.50 is: 125,090.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,301.50 : 222,596.07 = 90,645.50 : x
  2. Step 2: Convert to fraction form
    161,301.50/222,596.07 = 90,645.50/x
  3. Step 3: Cross multiply
    161,301.50x = 222,596.07 × 90,645.50
  4. Step 4: Simplify right side
    161,301.50x = 20,177,332,063.19
  5. Step 5: Solve for x
    x = 20,177,332,063.19/161,301.50
  6. Step 6: Final answer
    x = 125,090.79

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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.