Home / 126,739.88-174,901.19-78,993.19

Finding the Fourth Proportional to 126,739.88, 174,901.19 and 78,993.19

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Solution

The fourth proportional to 126,739.88, 174,901.19 and 78,993.19 is: 109,010.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,739.88 : 174,901.19 = 78,993.19 : x
  2. Step 2: Convert to fraction form
    126,739.88/174,901.19 = 78,993.19/x
  3. Step 3: Cross multiply
    126,739.88x = 174,901.19 × 78,993.19
  4. Step 4: Simplify right side
    126,739.88x = 13,816,002,100.68
  5. Step 5: Solve for x
    x = 13,816,002,100.68/126,739.88
  6. Step 6: Final answer
    x = 109,010.70

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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.