Home / 236,086.84-325,788.24-128,656.54

Finding the Fourth Proportional to 236,086.84, 325,788.24 and 128,656.54

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Solution

The fourth proportional to 236,086.84, 325,788.24 and 128,656.54 is: 177,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,086.84 : 325,788.24 = 128,656.54 : x
  2. Step 2: Convert to fraction form
    236,086.84/325,788.24 = 128,656.54/x
  3. Step 3: Cross multiply
    236,086.84x = 325,788.24 × 128,656.54
  4. Step 4: Simplify right side
    236,086.84x = 41,914,787,731.09
  5. Step 5: Solve for x
    x = 41,914,787,731.09/236,086.84
  6. Step 6: Final answer
    x = 177,539.70

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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.