Home / 236,217.72-325,980.36-128,787.84

Finding the Fourth Proportional to 236,217.72, 325,980.36 and 128,787.84

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Solution

The fourth proportional to 236,217.72, 325,980.36 and 128,787.84 is: 177,727.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,217.72 : 325,980.36 = 128,787.84 : x
  2. Step 2: Convert to fraction form
    236,217.72/325,980.36 = 128,787.84/x
  3. Step 3: Cross multiply
    236,217.72x = 325,980.36 × 128,787.84
  4. Step 4: Simplify right side
    236,217.72x = 41,982,306,446.82
  5. Step 5: Solve for x
    x = 41,982,306,446.82/236,217.72
  6. Step 6: Final answer
    x = 177,727.17

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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.