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Finding the Fourth Proportional to 144,889.38, 199,947.21 and 81,227.19

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Solution

The fourth proportional to 144,889.38, 199,947.21 and 81,227.19 is: 112,093.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,889.38 : 199,947.21 = 81,227.19 : x
  2. Step 2: Convert to fraction form
    144,889.38/199,947.21 = 81,227.19/x
  3. Step 3: Cross multiply
    144,889.38x = 199,947.21 × 81,227.19
  4. Step 4: Simplify right side
    144,889.38x = 16,241,150,016.64
  5. Step 5: Solve for x
    x = 16,241,150,016.64/144,889.38
  6. Step 6: Final answer
    x = 112,093.45

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1.5x scale

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.