Home / 235,709.66-325,273.07-128,277.38

Finding the Fourth Proportional to 235,709.66, 325,273.07 and 128,277.38

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Solution

The fourth proportional to 235,709.66, 325,273.07 and 128,277.38 is: 177,019.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,709.66 : 325,273.07 = 128,277.38 : x
  2. Step 2: Convert to fraction form
    235,709.66/325,273.07 = 128,277.38/x
  3. Step 3: Cross multiply
    235,709.66x = 325,273.07 × 128,277.38
  4. Step 4: Simplify right side
    235,709.66x = 41,725,174,936.40
  5. Step 5: Solve for x
    x = 41,725,174,936.40/235,709.66
  6. Step 6: Final answer
    x = 177,019.37

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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.