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Finding the Fourth Proportional to 188,026.26, 259,476.22 and 103,143.52

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Solution

The fourth proportional to 188,026.26, 259,476.22 and 103,143.52 is: 142,338.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,026.26 : 259,476.22 = 103,143.52 : x
  2. Step 2: Convert to fraction form
    188,026.26/259,476.22 = 103,143.52/x
  3. Step 3: Cross multiply
    188,026.26x = 259,476.22 × 103,143.52
  4. Step 4: Simplify right side
    188,026.26x = 26,763,290,687.09
  5. Step 5: Solve for x
    x = 26,763,290,687.09/188,026.26
  6. Step 6: Final answer
    x = 142,338.05

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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.