Home / 204,086.20-306,129.30-119,886.70

Finding the Fourth Proportional to 204,086.20, 306,129.30 and 119,886.70

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Solution

The fourth proportional to 204,086.20, 306,129.30 and 119,886.70 is: 179,830.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,086.20 : 306,129.30 = 119,886.70 : x
  2. Step 2: Convert to fraction form
    204,086.20/306,129.30 = 119,886.70/x
  3. Step 3: Cross multiply
    204,086.20x = 306,129.30 × 119,886.70
  4. Step 4: Simplify right side
    204,086.20x = 36,700,831,550.31
  5. Step 5: Solve for x
    x = 36,700,831,550.31/204,086.20
  6. Step 6: Final answer
    x = 179,830.05

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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.