Home / 219,907.10-329,817.45-72,163.10

Finding the Fourth Proportional to 219,907.10, 329,817.45 and 72,163.10

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Solution

The fourth proportional to 219,907.10, 329,817.45 and 72,163.10 is: 108,230.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,907.10 : 329,817.45 = 72,163.10 : x
  2. Step 2: Convert to fraction form
    219,907.10/329,817.45 = 72,163.10/x
  3. Step 3: Cross multiply
    219,907.10x = 329,817.45 × 72,163.10
  4. Step 4: Simplify right side
    219,907.10x = 23,800,649,626.10
  5. Step 5: Solve for x
    x = 23,800,649,626.10/219,907.10
  6. Step 6: Final answer
    x = 108,230.47

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1.5x scale

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.