Home / 144,821.44-199,858.08-81,144.64

Finding the Fourth Proportional to 144,821.44, 199,858.08 and 81,144.64

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Solution

The fourth proportional to 144,821.44, 199,858.08 and 81,144.64 is: 111,982.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,821.44 : 199,858.08 = 81,144.64 : x
  2. Step 2: Convert to fraction form
    144,821.44/199,858.08 = 81,144.64/x
  3. Step 3: Cross multiply
    144,821.44x = 199,858.08 × 81,144.64
  4. Step 4: Simplify right side
    144,821.44x = 16,217,411,952.69
  5. Step 5: Solve for x
    x = 16,217,411,952.69/144,821.44
  6. Step 6: Final answer
    x = 111,982.12

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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.