Home / 199,639.49-275,506.39-108,995.69

Finding the Fourth Proportional to 199,639.49, 275,506.39 and 108,995.69

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Solution

The fourth proportional to 199,639.49, 275,506.39 and 108,995.69 is: 150,416.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,639.49 : 275,506.39 = 108,995.69 : x
  2. Step 2: Convert to fraction form
    199,639.49/275,506.39 = 108,995.69/x
  3. Step 3: Cross multiply
    199,639.49x = 275,506.39 × 108,995.69
  4. Step 4: Simplify right side
    199,639.49x = 30,029,008,557.11
  5. Step 5: Solve for x
    x = 30,029,008,557.11/199,639.49
  6. Step 6: Final answer
    x = 150,416.17

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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.