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Finding the Fourth Proportional to 187,753.63, 281,631.03 and 47,512.21

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Solution

The fourth proportional to 187,753.63, 281,631.03 and 47,512.21 is: 71,268.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,753.63 : 281,631.03 = 47,512.21 : x
  2. Step 2: Convert to fraction form
    187,753.63/281,631.03 = 47,512.21/x
  3. Step 3: Cross multiply
    187,753.63x = 281,631.03 × 47,512.21
  4. Step 4: Simplify right side
    187,753.63x = 13,380,912,639.88
  5. Step 5: Solve for x
    x = 13,380,912,639.88/187,753.63
  6. Step 6: Final answer
    x = 71,268.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.