Home / 161,481.48-222,818.76-89,861.28

Finding the Fourth Proportional to 161,481.48, 222,818.76 and 89,861.28

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Solution

The fourth proportional to 161,481.48, 222,818.76 and 89,861.28 is: 123,994.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,481.48 : 222,818.76 = 89,861.28 : x
  2. Step 2: Convert to fraction form
    161,481.48/222,818.76 = 89,861.28/x
  3. Step 3: Cross multiply
    161,481.48x = 222,818.76 × 89,861.28
  4. Step 4: Simplify right side
    161,481.48x = 20,022,778,981.61
  5. Step 5: Solve for x
    x = 20,022,778,981.61/161,481.48
  6. Step 6: Final answer
    x = 123,994.27

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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.