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Finding the Fourth Proportional to 161,278.29, 222,564.92 and 89,664.98

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Solution

The fourth proportional to 161,278.29, 222,564.92 and 89,664.98 is: 123,738.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,278.29 : 222,564.92 = 89,664.98 : x
  2. Step 2: Convert to fraction form
    161,278.29/222,564.92 = 89,664.98/x
  3. Step 3: Cross multiply
    161,278.29x = 222,564.92 × 89,664.98
  4. Step 4: Simplify right side
    161,278.29x = 19,956,277,539.35
  5. Step 5: Solve for x
    x = 19,956,277,539.35/161,278.29
  6. Step 6: Final answer
    x = 123,738.15

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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.