Home / 204,884.92-307,316.31-78,585.67

Finding the Fourth Proportional to 204,884.92, 307,316.31 and 78,585.67

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Solution

The fourth proportional to 204,884.92, 307,316.31 and 78,585.67 is: 117,874.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,884.92 : 307,316.31 = 78,585.67 : x
  2. Step 2: Convert to fraction form
    204,884.92/307,316.31 = 78,585.67/x
  3. Step 3: Cross multiply
    204,884.92x = 307,316.31 × 78,585.67
  4. Step 4: Simplify right side
    204,884.92x = 24,150,658,123.28
  5. Step 5: Solve for x
    x = 24,150,658,123.28/204,884.92
  6. Step 6: Final answer
    x = 117,874.26

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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.