Home / 187,736.78-281,520.99-111,871.10

Finding the Fourth Proportional to 187,736.78, 281,520.99 and 111,871.10

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Solution

The fourth proportional to 187,736.78, 281,520.99 and 111,871.10 is: 167,756.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,736.78 : 281,520.99 = 111,871.10 : x
  2. Step 2: Convert to fraction form
    187,736.78/281,520.99 = 111,871.10/x
  3. Step 3: Cross multiply
    187,736.78x = 281,520.99 × 111,871.10
  4. Step 4: Simplify right side
    187,736.78x = 31,494,062,824.39
  5. Step 5: Solve for x
    x = 31,494,062,824.39/187,736.78
  6. Step 6: Final answer
    x = 167,756.49

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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.