Home / 208,119.26-312,187.61-65,961.43

Finding the Fourth Proportional to 208,119.26, 312,187.61 and 65,961.43

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Solution

The fourth proportional to 208,119.26, 312,187.61 and 65,961.43 is: 98,944.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,119.26 : 312,187.61 = 65,961.43 : x
  2. Step 2: Convert to fraction form
    208,119.26/312,187.61 = 65,961.43/x
  3. Step 3: Cross multiply
    208,119.26x = 312,187.61 × 65,961.43
  4. Step 4: Simplify right side
    208,119.26x = 20,592,340,568.32
  5. Step 5: Solve for x
    x = 20,592,340,568.32/208,119.26
  6. Step 6: Final answer
    x = 98,944.90

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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.