Home / 199,861.02-275,807.64-109,217.56

Finding the Fourth Proportional to 199,861.02, 275,807.64 and 109,217.56

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Solution

The fourth proportional to 199,861.02, 275,807.64 and 109,217.56 is: 150,719.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,861.02 : 275,807.64 = 109,217.56 : x
  2. Step 2: Convert to fraction form
    199,861.02/275,807.64 = 109,217.56/x
  3. Step 3: Cross multiply
    199,861.02x = 275,807.64 × 109,217.56
  4. Step 4: Simplify right side
    199,861.02x = 30,123,037,470.16
  5. Step 5: Solve for x
    x = 30,123,037,470.16/199,861.02
  6. Step 6: Final answer
    x = 150,719.92

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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.