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Finding the Fourth Proportional to 139,201.73, 192,098.89 and 75,539.51

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Solution

The fourth proportional to 139,201.73, 192,098.89 and 75,539.51 is: 104,244.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,201.73 : 192,098.89 = 75,539.51 : x
  2. Step 2: Convert to fraction form
    139,201.73/192,098.89 = 75,539.51/x
  3. Step 3: Cross multiply
    139,201.73x = 192,098.89 × 75,539.51
  4. Step 4: Simplify right side
    139,201.73x = 14,511,056,022.14
  5. Step 5: Solve for x
    x = 14,511,056,022.14/139,201.73
  6. Step 6: Final answer
    x = 104,244.80

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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.