Home / 204,800.32-307,084.74-84,789.40

Finding the Fourth Proportional to 204,800.32, 307,084.74 and 84,789.40

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Solution

The fourth proportional to 204,800.32, 307,084.74 and 84,789.40 is: 127,136.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,800.32 : 307,084.74 = 84,789.40 : x
  2. Step 2: Convert to fraction form
    204,800.32/307,084.74 = 84,789.40/x
  3. Step 3: Cross multiply
    204,800.32x = 307,084.74 × 84,789.40
  4. Step 4: Simplify right side
    204,800.32x = 26,037,530,853.76
  5. Step 5: Solve for x
    x = 26,037,530,853.76/204,800.32
  6. Step 6: Final answer
    x = 127,136.18

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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.