Home / 139,936.11-193,112.71-76,273.75

Finding the Fourth Proportional to 139,936.11, 193,112.71 and 76,273.75

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Solution

The fourth proportional to 139,936.11, 193,112.71 and 76,273.75 is: 105,258.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,936.11 : 193,112.71 = 76,273.75 : x
  2. Step 2: Convert to fraction form
    139,936.11/193,112.71 = 76,273.75/x
  3. Step 3: Cross multiply
    139,936.11x = 193,112.71 × 76,273.75
  4. Step 4: Simplify right side
    139,936.11x = 14,729,430,615.07
  5. Step 5: Solve for x
    x = 14,729,430,615.07/139,936.11
  6. Step 6: Final answer
    x = 105,258.26

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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.