Home / 144,804.82-199,836.06-81,140.26

Finding the Fourth Proportional to 144,804.82, 199,836.06 and 81,140.26

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Solution

The fourth proportional to 144,804.82, 199,836.06 and 81,140.26 is: 111,976.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,804.82 : 199,836.06 = 81,140.26 : x
  2. Step 2: Convert to fraction form
    144,804.82/199,836.06 = 81,140.26/x
  3. Step 3: Cross multiply
    144,804.82x = 199,836.06 × 81,140.26
  4. Step 4: Simplify right side
    144,804.82x = 16,214,749,865.78
  5. Step 5: Solve for x
    x = 16,214,749,865.78/144,804.82
  6. Step 6: Final answer
    x = 111,976.59

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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.