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Finding the Fourth Proportional to 144,772.98, 199,797.78 and 91,104

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Solution

The fourth proportional to 144,772.98, 199,797.78 and 91,104 is: 125,730.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,772.98 : 199,797.78 = 91,104 : x
  2. Step 2: Convert to fraction form
    144,772.98/199,797.78 = 91,104/x
  3. Step 3: Cross multiply
    144,772.98x = 199,797.78 × 91,104
  4. Step 4: Simplify right side
    144,772.98x = 18,202,376,949.12
  5. Step 5: Solve for x
    x = 18,202,376,949.12/144,772.98
  6. Step 6: Final answer
    x = 125,730.48

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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.