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Finding the Fourth Proportional to 144,884.58, 199,944.90 and 81,223.44

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Solution

The fourth proportional to 144,884.58, 199,944.90 and 81,223.44 is: 112,090.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,884.58 : 199,944.90 = 81,223.44 : x
  2. Step 2: Convert to fraction form
    144,884.58/199,944.90 = 81,223.44/x
  3. Step 3: Cross multiply
    144,884.58x = 199,944.90 × 81,223.44
  4. Step 4: Simplify right side
    144,884.58x = 16,240,212,588.46
  5. Step 5: Solve for x
    x = 16,240,212,588.46/144,884.58
  6. Step 6: Final answer
    x = 112,090.69

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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.