Home / 180,511.40-270,692.58-68,172.50

Finding the Fourth Proportional to 180,511.40, 270,692.58 and 68,172.50

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Solution

The fourth proportional to 180,511.40, 270,692.58 and 68,172.50 is: 102,230.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,511.40 : 270,692.58 = 68,172.50 : x
  2. Step 2: Convert to fraction form
    180,511.40/270,692.58 = 68,172.50/x
  3. Step 3: Cross multiply
    180,511.40x = 270,692.58 × 68,172.50
  4. Step 4: Simplify right side
    180,511.40x = 18,453,789,910.05
  5. Step 5: Solve for x
    x = 18,453,789,910.05/180,511.40
  6. Step 6: Final answer
    x = 102,230.61

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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.