Home / 204,143.12-306,194.88-61,989.63

Finding the Fourth Proportional to 204,143.12, 306,194.88 and 61,989.63

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Solution

The fourth proportional to 204,143.12, 306,194.88 and 61,989.63 is: 92,978.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,143.12 : 306,194.88 = 61,989.63 : x
  2. Step 2: Convert to fraction form
    204,143.12/306,194.88 = 61,989.63/x
  3. Step 3: Cross multiply
    204,143.12x = 306,194.88 × 61,989.63
  4. Step 4: Simplify right side
    204,143.12x = 18,980,906,553.61
  5. Step 5: Solve for x
    x = 18,980,906,553.61/204,143.12
  6. Step 6: Final answer
    x = 92,978.43

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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.