Home / 256,789.38-384,975.39-107,141.16

Finding the Fourth Proportional to 256,789.38, 384,975.39 and 107,141.16

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Solution

The fourth proportional to 256,789.38, 384,975.39 and 107,141.16 is: 160,624.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,789.38 : 384,975.39 = 107,141.16 : x
  2. Step 2: Convert to fraction form
    256,789.38/384,975.39 = 107,141.16/x
  3. Step 3: Cross multiply
    256,789.38x = 384,975.39 × 107,141.16
  4. Step 4: Simplify right side
    256,789.38x = 41,246,709,856.05
  5. Step 5: Solve for x
    x = 41,246,709,856.05/256,789.38
  6. Step 6: Final answer
    x = 160,624.67

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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.