Home / 104,984.11-144,880.33-57,237.78

Finding the Fourth Proportional to 104,984.11, 144,880.33 and 57,237.78

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Solution

The fourth proportional to 104,984.11, 144,880.33 and 57,237.78 is: 78,989.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,984.11 : 144,880.33 = 57,237.78 : x
  2. Step 2: Convert to fraction form
    104,984.11/144,880.33 = 57,237.78/x
  3. Step 3: Cross multiply
    104,984.11x = 144,880.33 × 57,237.78
  4. Step 4: Simplify right side
    104,984.11x = 8,292,628,454.87
  5. Step 5: Solve for x
    x = 8,292,628,454.87/104,984.11
  6. Step 6: Final answer
    x = 78,989.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.