Home / 187,084.93-280,738.11-68,839.30

Finding the Fourth Proportional to 187,084.93, 280,738.11 and 68,839.30

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Solution

The fourth proportional to 187,084.93, 280,738.11 and 68,839.30 is: 103,299.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,084.93 : 280,738.11 = 68,839.30 : x
  2. Step 2: Convert to fraction form
    187,084.93/280,738.11 = 68,839.30/x
  3. Step 3: Cross multiply
    187,084.93x = 280,738.11 × 68,839.30
  4. Step 4: Simplify right side
    187,084.93x = 19,325,814,975.72
  5. Step 5: Solve for x
    x = 19,325,814,975.72/187,084.93
  6. Step 6: Final answer
    x = 103,299.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.