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Finding the Fourth Proportional to 199,755.81, 275,661.36 and 109,111.86

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Solution

The fourth proportional to 199,755.81, 275,661.36 and 109,111.86 is: 150,573.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,755.81 : 275,661.36 = 109,111.86 : x
  2. Step 2: Convert to fraction form
    199,755.81/275,661.36 = 109,111.86/x
  3. Step 3: Cross multiply
    199,755.81x = 275,661.36 × 109,111.86
  4. Step 4: Simplify right side
    199,755.81x = 30,077,923,719.73
  5. Step 5: Solve for x
    x = 30,077,923,719.73/199,755.81
  6. Step 6: Final answer
    x = 150,573.46

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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.