Home / 129,374.45-194,069.91-40,631.46

Finding the Fourth Proportional to 129,374.45, 194,069.91 and 40,631.46

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Solution

The fourth proportional to 129,374.45, 194,069.91 and 40,631.46 is: 60,949.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,374.45 : 194,069.91 = 40,631.46 : x
  2. Step 2: Convert to fraction form
    129,374.45/194,069.91 = 40,631.46/x
  3. Step 3: Cross multiply
    129,374.45x = 194,069.91 × 40,631.46
  4. Step 4: Simplify right side
    129,374.45x = 7,885,343,785.37
  5. Step 5: Solve for x
    x = 7,885,343,785.37/129,374.45
  6. Step 6: Final answer
    x = 60,949.78

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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.