Home / 481,033.31-721,346.96-144,121.86

Finding the Fourth Proportional to 481,033.31, 721,346.96 and 144,121.86

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Solution

The fourth proportional to 481,033.31, 721,346.96 and 144,121.86 is: 216,121.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,033.31 : 721,346.96 = 144,121.86 : x
  2. Step 2: Convert to fraction form
    481,033.31/721,346.96 = 144,121.86/x
  3. Step 3: Cross multiply
    481,033.31x = 721,346.96 × 144,121.86
  4. Step 4: Simplify right side
    481,033.31x = 103,961,865,940.85
  5. Step 5: Solve for x
    x = 103,961,865,940.85/481,033.31
  6. Step 6: Final answer
    x = 216,121.97

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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.