Home / 209,311.80-313,923.78-69,037.56

Finding the Fourth Proportional to 209,311.80, 313,923.78 and 69,037.56

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Solution

The fourth proportional to 209,311.80, 313,923.78 and 69,037.56 is: 103,541.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,311.80 : 313,923.78 = 69,037.56 : x
  2. Step 2: Convert to fraction form
    209,311.80/313,923.78 = 69,037.56/x
  3. Step 3: Cross multiply
    209,311.80x = 313,923.78 × 69,037.56
  4. Step 4: Simplify right side
    209,311.80x = 21,672,531,797.18
  5. Step 5: Solve for x
    x = 21,672,531,797.18/209,311.80
  6. Step 6: Final answer
    x = 103,541.85

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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.