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Finding the Fourth Proportional to 188,317.63, 259,923.59 and 107,791.84

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Solution

The fourth proportional to 188,317.63, 259,923.59 and 107,791.84 is: 148,778.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,317.63 : 259,923.59 = 107,791.84 : x
  2. Step 2: Convert to fraction form
    188,317.63/259,923.59 = 107,791.84/x
  3. Step 3: Cross multiply
    188,317.63x = 259,923.59 × 107,791.84
  4. Step 4: Simplify right side
    188,317.63x = 28,017,642,025.51
  5. Step 5: Solve for x
    x = 28,017,642,025.51/188,317.63
  6. Step 6: Final answer
    x = 148,778.65

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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.