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Finding the Fourth Proportional to 104,228.39, 143,782.34 and 65,923.43

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Solution

The fourth proportional to 104,228.39, 143,782.34 and 65,923.43 is: 90,940.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,228.39 : 143,782.34 = 65,923.43 : x
  2. Step 2: Convert to fraction form
    104,228.39/143,782.34 = 65,923.43/x
  3. Step 3: Cross multiply
    104,228.39x = 143,782.34 × 65,923.43
  4. Step 4: Simplify right side
    104,228.39x = 9,478,623,977.70
  5. Step 5: Solve for x
    x = 9,478,623,977.70/104,228.39
  6. Step 6: Final answer
    x = 90,940.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.