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Finding the Fourth Proportional to 188,501.97, 260,126.13 and 103,618.42

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Solution

The fourth proportional to 188,501.97, 260,126.13 and 103,618.42 is: 142,989.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,501.97 : 260,126.13 = 103,618.42 : x
  2. Step 2: Convert to fraction form
    188,501.97/260,126.13 = 103,618.42/x
  3. Step 3: Cross multiply
    188,501.97x = 260,126.13 × 103,618.42
  4. Step 4: Simplify right side
    188,501.97x = 26,953,858,591.31
  5. Step 5: Solve for x
    x = 26,953,858,591.31/188,501.97
  6. Step 6: Final answer
    x = 142,989.80

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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.