Home / 236,217.52-325,977.04-128,787.36

Finding the Fourth Proportional to 236,217.52, 325,977.04 and 128,787.36

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Solution

The fourth proportional to 236,217.52, 325,977.04 and 128,787.36 is: 177,724.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,217.52 : 325,977.04 = 128,787.36 : x
  2. Step 2: Convert to fraction form
    236,217.52/325,977.04 = 128,787.36/x
  3. Step 3: Cross multiply
    236,217.52x = 325,977.04 × 128,787.36
  4. Step 4: Simplify right side
    236,217.52x = 41,981,722,402.21
  5. Step 5: Solve for x
    x = 41,981,722,402.21/236,217.52
  6. Step 6: Final answer
    x = 177,724.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.