Home / 216,022.40-324,033.60-109,734.20

Finding the Fourth Proportional to 216,022.40, 324,033.60 and 109,734.20

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Solution

The fourth proportional to 216,022.40, 324,033.60 and 109,734.20 is: 164,601.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,022.40 : 324,033.60 = 109,734.20 : x
  2. Step 2: Convert to fraction form
    216,022.40/324,033.60 = 109,734.20/x
  3. Step 3: Cross multiply
    216,022.40x = 324,033.60 × 109,734.20
  4. Step 4: Simplify right side
    216,022.40x = 35,557,567,869.12
  5. Step 5: Solve for x
    x = 35,557,567,869.12/216,022.40
  6. Step 6: Final answer
    x = 164,601.30

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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.