Home / 141,453.76-195,201.72-77,791.36

Finding the Fourth Proportional to 141,453.76, 195,201.72 and 77,791.36

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Solution

The fourth proportional to 141,453.76, 195,201.72 and 77,791.36 is: 107,349.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,453.76 : 195,201.72 = 77,791.36 : x
  2. Step 2: Convert to fraction form
    141,453.76/195,201.72 = 77,791.36/x
  3. Step 3: Cross multiply
    141,453.76x = 195,201.72 × 77,791.36
  4. Step 4: Simplify right side
    141,453.76x = 15,185,007,273.14
  5. Step 5: Solve for x
    x = 15,185,007,273.14/141,453.76
  6. Step 6: Final answer
    x = 107,349.62

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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.