Home / 198,921.84-274,518.06-122,485.03

Finding the Fourth Proportional to 198,921.84, 274,518.06 and 122,485.03

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Solution

The fourth proportional to 198,921.84, 274,518.06 and 122,485.03 is: 169,032.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,921.84 : 274,518.06 = 122,485.03 : x
  2. Step 2: Convert to fraction form
    198,921.84/274,518.06 = 122,485.03/x
  3. Step 3: Cross multiply
    198,921.84x = 274,518.06 × 122,485.03
  4. Step 4: Simplify right side
    198,921.84x = 33,624,352,358.01
  5. Step 5: Solve for x
    x = 33,624,352,358.01/198,921.84
  6. Step 6: Final answer
    x = 169,032.98

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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.