Home / 194,685.72-268,665.78-108,643.80

Finding the Fourth Proportional to 194,685.72, 268,665.78 and 108,643.80

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Solution

The fourth proportional to 194,685.72, 268,665.78 and 108,643.80 is: 149,928.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,685.72 : 268,665.78 = 108,643.80 : x
  2. Step 2: Convert to fraction form
    194,685.72/268,665.78 = 108,643.80/x
  3. Step 3: Cross multiply
    194,685.72x = 268,665.78 × 108,643.80
  4. Step 4: Simplify right side
    194,685.72x = 29,188,871,269.16
  5. Step 5: Solve for x
    x = 29,188,871,269.16/194,685.72
  6. Step 6: Final answer
    x = 149,928.16

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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.