Home / 109,629.26-164,415.09-47,285.90

Finding the Fourth Proportional to 109,629.26, 164,415.09 and 47,285.90

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Solution

The fourth proportional to 109,629.26, 164,415.09 and 47,285.90 is: 70,916.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,629.26 : 164,415.09 = 47,285.90 : x
  2. Step 2: Convert to fraction form
    109,629.26/164,415.09 = 47,285.90/x
  3. Step 3: Cross multiply
    109,629.26x = 164,415.09 × 47,285.90
  4. Step 4: Simplify right side
    109,629.26x = 7,774,515,504.23
  5. Step 5: Solve for x
    x = 7,774,515,504.23/109,629.26
  6. Step 6: Final answer
    x = 70,916.43

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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.