Home / 199,621.17-275,481.38-108,980.95

Finding the Fourth Proportional to 199,621.17, 275,481.38 and 108,980.95

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Solution

The fourth proportional to 199,621.17, 275,481.38 and 108,980.95 is: 150,395.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,621.17 : 275,481.38 = 108,980.95 : x
  2. Step 2: Convert to fraction form
    199,621.17/275,481.38 = 108,980.95/x
  3. Step 3: Cross multiply
    199,621.17x = 275,481.38 × 108,980.95
  4. Step 4: Simplify right side
    199,621.17x = 30,022,223,068.27
  5. Step 5: Solve for x
    x = 30,022,223,068.27/199,621.17
  6. Step 6: Final answer
    x = 150,395.99

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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.