Home / 199,334.36-275,086.96-121,822.56

Finding the Fourth Proportional to 199,334.36, 275,086.96 and 121,822.56

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Solution

The fourth proportional to 199,334.36, 275,086.96 and 121,822.56 is: 168,118.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,334.36 : 275,086.96 = 121,822.56 : x
  2. Step 2: Convert to fraction form
    199,334.36/275,086.96 = 121,822.56/x
  3. Step 3: Cross multiply
    199,334.36x = 275,086.96 × 121,822.56
  4. Step 4: Simplify right side
    199,334.36x = 33,511,797,385.26
  5. Step 5: Solve for x
    x = 33,511,797,385.26/199,334.36
  6. Step 6: Final answer
    x = 168,118.52

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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.