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Finding the Fourth Proportional to 136,883.39, 188,899.94 and 76,454.46

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Solution

The fourth proportional to 136,883.39, 188,899.94 and 76,454.46 is: 105,507.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,883.39 : 188,899.94 = 76,454.46 : x
  2. Step 2: Convert to fraction form
    136,883.39/188,899.94 = 76,454.46/x
  3. Step 3: Cross multiply
    136,883.39x = 188,899.94 × 76,454.46
  4. Step 4: Simplify right side
    136,883.39x = 14,442,242,906.73
  5. Step 5: Solve for x
    x = 14,442,242,906.73/136,883.39
  6. Step 6: Final answer
    x = 105,507.64

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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.