Home / 126,077.19-174,067.52-78,395.37

Finding the Fourth Proportional to 126,077.19, 174,067.52 and 78,395.37

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Solution

The fourth proportional to 126,077.19, 174,067.52 and 78,395.37 is: 108,235.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,077.19 : 174,067.52 = 78,395.37 : x
  2. Step 2: Convert to fraction form
    126,077.19/174,067.52 = 78,395.37/x
  3. Step 3: Cross multiply
    126,077.19x = 174,067.52 × 78,395.37
  4. Step 4: Simplify right side
    126,077.19x = 13,646,087,243.41
  5. Step 5: Solve for x
    x = 13,646,087,243.41/126,077.19
  6. Step 6: Final answer
    x = 108,235.97

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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.