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Finding the Fourth Proportional to 187,755.87, 281,630.72 and 45,602.31

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Solution

The fourth proportional to 187,755.87, 281,630.72 and 45,602.31 is: 68,402.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,755.87 : 281,630.72 = 45,602.31 : x
  2. Step 2: Convert to fraction form
    187,755.87/281,630.72 = 45,602.31/x
  3. Step 3: Cross multiply
    187,755.87x = 281,630.72 × 45,602.31
  4. Step 4: Simplify right side
    187,755.87x = 12,843,011,170.95
  5. Step 5: Solve for x
    x = 12,843,011,170.95/187,755.87
  6. Step 6: Final answer
    x = 68,402.71

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1.5x scale

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.