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Finding the Fourth Proportional to 199,329.68, 275,073.96 and 109,905.68

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Solution

The fourth proportional to 199,329.68, 275,073.96 and 109,905.68 is: 151,669.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,329.68 : 275,073.96 = 109,905.68 : x
  2. Step 2: Convert to fraction form
    199,329.68/275,073.96 = 109,905.68/x
  3. Step 3: Cross multiply
    199,329.68x = 275,073.96 × 109,905.68
  4. Step 4: Simplify right side
    199,329.68x = 30,232,190,624.09
  5. Step 5: Solve for x
    x = 30,232,190,624.09/199,329.68
  6. Step 6: Final answer
    x = 151,669.29

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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.