Home / 199,639.12-275,505.88-108,995.31

Finding the Fourth Proportional to 199,639.12, 275,505.88 and 108,995.31

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Solution

The fourth proportional to 199,639.12, 275,505.88 and 108,995.31 is: 150,415.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,639.12 : 275,505.88 = 108,995.31 : x
  2. Step 2: Convert to fraction form
    199,639.12/275,505.88 = 108,995.31/x
  3. Step 3: Cross multiply
    199,639.12x = 275,505.88 × 108,995.31
  4. Step 4: Simplify right side
    199,639.12x = 30,028,848,837.14
  5. Step 5: Solve for x
    x = 30,028,848,837.14/199,639.12
  6. Step 6: Final answer
    x = 150,415.66

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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.