Home / 144,786.11-199,804.68-81,124.36

Finding the Fourth Proportional to 144,786.11, 199,804.68 and 81,124.36

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Solution

The fourth proportional to 144,786.11, 199,804.68 and 81,124.36 is: 111,951.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,786.11 : 199,804.68 = 81,124.36 : x
  2. Step 2: Convert to fraction form
    144,786.11/199,804.68 = 81,124.36/x
  3. Step 3: Cross multiply
    144,786.11x = 199,804.68 × 81,124.36
  4. Step 4: Simplify right side
    144,786.11x = 16,209,026,290.49
  5. Step 5: Solve for x
    x = 16,209,026,290.49/144,786.11
  6. Step 6: Final answer
    x = 111,951.53

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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.