Home / 199,921.80-275,899.47-109,283.82

Finding the Fourth Proportional to 199,921.80, 275,899.47 and 109,283.82

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Solution

The fourth proportional to 199,921.80, 275,899.47 and 109,283.82 is: 150,815.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,921.80 : 275,899.47 = 109,283.82 : x
  2. Step 2: Convert to fraction form
    199,921.80/275,899.47 = 109,283.82/x
  3. Step 3: Cross multiply
    199,921.80x = 275,899.47 × 109,283.82
  4. Step 4: Simplify right side
    199,921.80x = 30,151,348,017.58
  5. Step 5: Solve for x
    x = 30,151,348,017.58/199,921.80
  6. Step 6: Final answer
    x = 150,815.71

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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.