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Finding the Fourth Proportional to 161,364, 222,687.78 and 88,769.94

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Solution

The fourth proportional to 161,364, 222,687.78 and 88,769.94 is: 122,505.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,364 : 222,687.78 = 88,769.94 : x
  2. Step 2: Convert to fraction form
    161,364/222,687.78 = 88,769.94/x
  3. Step 3: Cross multiply
    161,364x = 222,687.78 × 88,769.94
  4. Step 4: Simplify right side
    161,364x = 19,767,980,869.33
  5. Step 5: Solve for x
    x = 19,767,980,869.33/161,364
  6. Step 6: Final answer
    x = 122,505.52

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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.