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Finding the Fourth Proportional to 104,903.81, 144,822.11 and 81,884.27

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Solution

The fourth proportional to 104,903.81, 144,822.11 and 81,884.27 is: 113,043.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,903.81 : 144,822.11 = 81,884.27 : x
  2. Step 2: Convert to fraction form
    104,903.81/144,822.11 = 81,884.27/x
  3. Step 3: Cross multiply
    104,903.81x = 144,822.11 × 81,884.27
  4. Step 4: Simplify right side
    104,903.81x = 11,858,652,347.79
  5. Step 5: Solve for x
    x = 11,858,652,347.79/104,903.81
  6. Step 6: Final answer
    x = 113,043.10

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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.