Home / 198,698.21-274,107.09-118,068.64

Finding the Fourth Proportional to 198,698.21, 274,107.09 and 118,068.64

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Solution

The fourth proportional to 198,698.21, 274,107.09 and 118,068.64 is: 162,877.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,698.21 : 274,107.09 = 118,068.64 : x
  2. Step 2: Convert to fraction form
    198,698.21/274,107.09 = 118,068.64/x
  3. Step 3: Cross multiply
    198,698.21x = 274,107.09 × 118,068.64
  4. Step 4: Simplify right side
    198,698.21x = 32,363,450,424.01
  5. Step 5: Solve for x
    x = 32,363,450,424.01/198,698.21
  6. Step 6: Final answer
    x = 162,877.41

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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.