Home / 144,813.44-199,842.36-81,151.68

Finding the Fourth Proportional to 144,813.44, 199,842.36 and 81,151.68

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Solution

The fourth proportional to 144,813.44, 199,842.36 and 81,151.68 is: 111,989.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,813.44 : 199,842.36 = 81,151.68 : x
  2. Step 2: Convert to fraction form
    144,813.44/199,842.36 = 81,151.68/x
  3. Step 3: Cross multiply
    144,813.44x = 199,842.36 × 81,151.68
  4. Step 4: Simplify right side
    144,813.44x = 16,217,543,249.16
  5. Step 5: Solve for x
    x = 16,217,543,249.16/144,813.44
  6. Step 6: Final answer
    x = 111,989.21

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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.