Home / 104,917.56-144,787.02-57,172.20

Finding the Fourth Proportional to 104,917.56, 144,787.02 and 57,172.20

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Solution

The fourth proportional to 104,917.56, 144,787.02 and 57,172.20 is: 78,898.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,917.56 : 144,787.02 = 57,172.20 : x
  2. Step 2: Convert to fraction form
    104,917.56/144,787.02 = 57,172.20/x
  3. Step 3: Cross multiply
    104,917.56x = 144,787.02 × 57,172.20
  4. Step 4: Simplify right side
    104,917.56x = 8,277,792,464.84
  5. Step 5: Solve for x
    x = 8,277,792,464.84/104,917.56
  6. Step 6: Final answer
    x = 78,898.06

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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.