Home / 208,004.62-312,047.39-79,911.57

Finding the Fourth Proportional to 208,004.62, 312,047.39 and 79,911.57

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Solution

The fourth proportional to 208,004.62, 312,047.39 and 79,911.57 is: 119,882.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,004.62 : 312,047.39 = 79,911.57 : x
  2. Step 2: Convert to fraction form
    208,004.62/312,047.39 = 79,911.57/x
  3. Step 3: Cross multiply
    208,004.62x = 312,047.39 × 79,911.57
  4. Step 4: Simplify right side
    208,004.62x = 24,936,196,849.30
  5. Step 5: Solve for x
    x = 24,936,196,849.30/208,004.62
  6. Step 6: Final answer
    x = 119,882.90

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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.