Home / 204,116.28-306,106.26-85,765.56

Finding the Fourth Proportional to 204,116.28, 306,106.26 and 85,765.56

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Solution

The fourth proportional to 204,116.28, 306,106.26 and 85,765.56 is: 128,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,116.28 : 306,106.26 = 85,765.56 : x
  2. Step 2: Convert to fraction form
    204,116.28/306,106.26 = 85,765.56/x
  3. Step 3: Cross multiply
    204,116.28x = 306,106.26 × 85,765.56
  4. Step 4: Simplify right side
    204,116.28x = 26,253,374,808.41
  5. Step 5: Solve for x
    x = 26,253,374,808.41/204,116.28
  6. Step 6: Final answer
    x = 128,619.70

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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.