Home / 144,786.23-199,804.86-81,124.48

Finding the Fourth Proportional to 144,786.23, 199,804.86 and 81,124.48

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Solution

The fourth proportional to 144,786.23, 199,804.86 and 81,124.48 is: 111,951.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,786.23 : 199,804.86 = 81,124.48 : x
  2. Step 2: Convert to fraction form
    144,786.23/199,804.86 = 81,124.48/x
  3. Step 3: Cross multiply
    144,786.23x = 199,804.86 × 81,124.48
  4. Step 4: Simplify right side
    144,786.23x = 16,209,065,868.49
  5. Step 5: Solve for x
    x = 16,209,065,868.49/144,786.23
  6. Step 6: Final answer
    x = 111,951.71

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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.