Home / 198,028.20-296,969.40-64,912.80

Finding the Fourth Proportional to 198,028.20, 296,969.40 and 64,912.80

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Solution

The fourth proportional to 198,028.20, 296,969.40 and 64,912.80 is: 97,345.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,028.20 : 296,969.40 = 64,912.80 : x
  2. Step 2: Convert to fraction form
    198,028.20/296,969.40 = 64,912.80/x
  3. Step 3: Cross multiply
    198,028.20x = 296,969.40 × 64,912.80
  4. Step 4: Simplify right side
    198,028.20x = 19,277,115,268.32
  5. Step 5: Solve for x
    x = 19,277,115,268.32/198,028.20
  6. Step 6: Final answer
    x = 97,345.30

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1.5x scale

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.