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Finding the Fourth Proportional to 187,745.40, 281,615.67 and 45,591.84

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Solution

The fourth proportional to 187,745.40, 281,615.67 and 45,591.84 is: 68,387.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,745.40 : 281,615.67 = 45,591.84 : x
  2. Step 2: Convert to fraction form
    187,745.40/281,615.67 = 45,591.84/x
  3. Step 3: Cross multiply
    187,745.40x = 281,615.67 × 45,591.84
  4. Step 4: Simplify right side
    187,745.40x = 12,839,376,568.13
  5. Step 5: Solve for x
    x = 12,839,376,568.13/187,745.40
  6. Step 6: Final answer
    x = 68,387.17

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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.