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Finding the Fourth Proportional to 144,889.88, 199,947.90 and 81,227.69

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Solution

The fourth proportional to 144,889.88, 199,947.90 and 81,227.69 is: 112,094.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,889.88 : 199,947.90 = 81,227.69 : x
  2. Step 2: Convert to fraction form
    144,889.88/199,947.90 = 81,227.69/x
  3. Step 3: Cross multiply
    144,889.88x = 199,947.90 × 81,227.69
  4. Step 4: Simplify right side
    144,889.88x = 16,241,306,037.35
  5. Step 5: Solve for x
    x = 16,241,306,037.35/144,889.88
  6. Step 6: Final answer
    x = 112,094.14

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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.