Home / 236,160.45-325,891.62-128,728.17

Finding the Fourth Proportional to 236,160.45, 325,891.62 and 128,728.17

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Solution

The fourth proportional to 236,160.45, 325,891.62 and 128,728.17 is: 177,639.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,160.45 : 325,891.62 = 128,728.17 : x
  2. Step 2: Convert to fraction form
    236,160.45/325,891.62 = 128,728.17/x
  3. Step 3: Cross multiply
    236,160.45x = 325,891.62 × 128,728.17
  4. Step 4: Simplify right side
    236,160.45x = 41,951,431,860.94
  5. Step 5: Solve for x
    x = 41,951,431,860.94/236,160.45
  6. Step 6: Final answer
    x = 177,639.53

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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.