Home / 194,681.72-268,660.27-108,639.80

Finding the Fourth Proportional to 194,681.72, 268,660.27 and 108,639.80

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Solution

The fourth proportional to 194,681.72, 268,660.27 and 108,639.80 is: 149,922.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,681.72 : 268,660.27 = 108,639.80 : x
  2. Step 2: Convert to fraction form
    194,681.72/268,660.27 = 108,639.80/x
  3. Step 3: Cross multiply
    194,681.72x = 268,660.27 × 108,639.80
  4. Step 4: Simplify right side
    194,681.72x = 29,187,198,000.75
  5. Step 5: Solve for x
    x = 29,187,198,000.75/194,681.72
  6. Step 6: Final answer
    x = 149,922.64

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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.