Home / 144,786.66-199,813.59-81,144.96

Finding the Fourth Proportional to 144,786.66, 199,813.59 and 81,144.96

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Solution

The fourth proportional to 144,786.66, 199,813.59 and 81,144.96 is: 111,984.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,786.66 : 199,813.59 = 81,144.96 : x
  2. Step 2: Convert to fraction form
    144,786.66/199,813.59 = 81,144.96/x
  3. Step 3: Cross multiply
    144,786.66x = 199,813.59 × 81,144.96
  4. Step 4: Simplify right side
    144,786.66x = 16,213,865,768.01
  5. Step 5: Solve for x
    x = 16,213,865,768.01/144,786.66
  6. Step 6: Final answer
    x = 111,984.53

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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.