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Finding the Fourth Proportional to 159,414.56, 238,974.12 and 70,620.74

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Solution

The fourth proportional to 159,414.56, 238,974.12 and 70,620.74 is: 105,865.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,414.56 : 238,974.12 = 70,620.74 : x
  2. Step 2: Convert to fraction form
    159,414.56/238,974.12 = 70,620.74/x
  3. Step 3: Cross multiply
    159,414.56x = 238,974.12 × 70,620.74
  4. Step 4: Simplify right side
    159,414.56x = 16,876,529,195.25
  5. Step 5: Solve for x
    x = 16,876,529,195.25/159,414.56
  6. Step 6: Final answer
    x = 105,865.67

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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.