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Finding the Fourth Proportional to 104,991.33, 144,846.67 and 64,634.97

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Solution

The fourth proportional to 104,991.33, 144,846.67 and 64,634.97 is: 89,170.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,991.33 : 144,846.67 = 64,634.97 : x
  2. Step 2: Convert to fraction form
    104,991.33/144,846.67 = 64,634.97/x
  3. Step 3: Cross multiply
    104,991.33x = 144,846.67 × 64,634.97
  4. Step 4: Simplify right side
    104,991.33x = 9,362,160,170.05
  5. Step 5: Solve for x
    x = 9,362,160,170.05/104,991.33
  6. Step 6: Final answer
    x = 89,170.79

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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.