Home / 204,801.32-307,086.24-84,790.40

Finding the Fourth Proportional to 204,801.32, 307,086.24 and 84,790.40

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Solution

The fourth proportional to 204,801.32, 307,086.24 and 84,790.40 is: 127,137.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,801.32 : 307,086.24 = 84,790.40 : x
  2. Step 2: Convert to fraction form
    204,801.32/307,086.24 = 84,790.40/x
  3. Step 3: Cross multiply
    204,801.32x = 307,086.24 × 84,790.40
  4. Step 4: Simplify right side
    204,801.32x = 26,037,965,124.10
  5. Step 5: Solve for x
    x = 26,037,965,124.10/204,801.32
  6. Step 6: Final answer
    x = 127,137.68

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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.