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Finding the Fourth Proportional to 187,687.73, 259,015.52 and 102,804.80

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Solution

The fourth proportional to 187,687.73, 259,015.52 and 102,804.80 is: 141,874.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,687.73 : 259,015.52 = 102,804.80 : x
  2. Step 2: Convert to fraction form
    187,687.73/259,015.52 = 102,804.80/x
  3. Step 3: Cross multiply
    187,687.73x = 259,015.52 × 102,804.80
  4. Step 4: Simplify right side
    187,687.73x = 26,628,037,692.43
  5. Step 5: Solve for x
    x = 26,628,037,692.43/187,687.73
  6. Step 6: Final answer
    x = 141,874.15

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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.