Home / 312,121.10-468,202.41-109,692.72

Finding the Fourth Proportional to 312,121.10, 468,202.41 and 109,692.72

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Solution

The fourth proportional to 312,121.10, 468,202.41 and 109,692.72 is: 164,546.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,121.10 : 468,202.41 = 109,692.72 : x
  2. Step 2: Convert to fraction form
    312,121.10/468,202.41 = 109,692.72/x
  3. Step 3: Cross multiply
    312,121.10x = 468,202.41 × 109,692.72
  4. Step 4: Simplify right side
    312,121.10x = 51,358,392,973.98
  5. Step 5: Solve for x
    x = 51,358,392,973.98/312,121.10
  6. Step 6: Final answer
    x = 164,546.37

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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.