Home / 199,821.48-275,750.40-109,175.49

Finding the Fourth Proportional to 199,821.48, 275,750.40 and 109,175.49

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Solution

The fourth proportional to 199,821.48, 275,750.40 and 109,175.49 is: 150,660.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,821.48 : 275,750.40 = 109,175.49 : x
  2. Step 2: Convert to fraction form
    199,821.48/275,750.40 = 109,175.49/x
  3. Step 3: Cross multiply
    199,821.48x = 275,750.40 × 109,175.49
  4. Step 4: Simplify right side
    199,821.48x = 30,105,185,037.70
  5. Step 5: Solve for x
    x = 30,105,185,037.70/199,821.48
  6. Step 6: Final answer
    x = 150,660.40

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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.