Home / 194,681.80-268,660.38-108,639.87

Finding the Fourth Proportional to 194,681.80, 268,660.38 and 108,639.87

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Solution

The fourth proportional to 194,681.80, 268,660.38 and 108,639.87 is: 149,922.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,681.80 : 268,660.38 = 108,639.87 : x
  2. Step 2: Convert to fraction form
    194,681.80/268,660.38 = 108,639.87/x
  3. Step 3: Cross multiply
    194,681.80x = 268,660.38 × 108,639.87
  4. Step 4: Simplify right side
    194,681.80x = 29,187,228,157.27
  5. Step 5: Solve for x
    x = 29,187,228,157.27/194,681.80
  6. Step 6: Final answer
    x = 149,922.74

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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.