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Finding the Fourth Proportional to 199,369.56, 275,129.94 and 109,945.56

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Solution

The fourth proportional to 199,369.56, 275,129.94 and 109,945.56 is: 151,724.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,369.56 : 275,129.94 = 109,945.56 : x
  2. Step 2: Convert to fraction form
    199,369.56/275,129.94 = 109,945.56/x
  3. Step 3: Cross multiply
    199,369.56x = 275,129.94 × 109,945.56
  4. Step 4: Simplify right side
    199,369.56x = 30,249,315,326.07
  5. Step 5: Solve for x
    x = 30,249,315,326.07/199,369.56
  6. Step 6: Final answer
    x = 151,724.84

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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.