Home / 194,720.10-268,715.79-108,687.30

Finding the Fourth Proportional to 194,720.10, 268,715.79 and 108,687.30

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Solution

The fourth proportional to 194,720.10, 268,715.79 and 108,687.30 is: 149,989.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,720.10 : 268,715.79 = 108,687.30 : x
  2. Step 2: Convert to fraction form
    194,720.10/268,715.79 = 108,687.30/x
  3. Step 3: Cross multiply
    194,720.10x = 268,715.79 × 108,687.30
  4. Step 4: Simplify right side
    194,720.10x = 29,205,993,682.47
  5. Step 5: Solve for x
    x = 29,205,993,682.47/194,720.10
  6. Step 6: Final answer
    x = 149,989.62

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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.