Home / 199,634.81-275,491.75-108,986.36

Finding the Fourth Proportional to 199,634.81, 275,491.75 and 108,986.36

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Solution

The fourth proportional to 199,634.81, 275,491.75 and 108,986.36 is: 150,398.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,634.81 : 275,491.75 = 108,986.36 : x
  2. Step 2: Convert to fraction form
    199,634.81/275,491.75 = 108,986.36/x
  3. Step 3: Cross multiply
    199,634.81x = 275,491.75 × 108,986.36
  4. Step 4: Simplify right side
    199,634.81x = 30,024,842,497.60
  5. Step 5: Solve for x
    x = 30,024,842,497.60/199,634.81
  6. Step 6: Final answer
    x = 150,398.83

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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.