Home / 143,028.30-197,368.11-82,571.34

Finding the Fourth Proportional to 143,028.30, 197,368.11 and 82,571.34

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Solution

The fourth proportional to 143,028.30, 197,368.11 and 82,571.34 is: 113,942.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,028.30 : 197,368.11 = 82,571.34 : x
  2. Step 2: Convert to fraction form
    143,028.30/197,368.11 = 82,571.34/x
  3. Step 3: Cross multiply
    143,028.30x = 197,368.11 × 82,571.34
  4. Step 4: Simplify right side
    143,028.30x = 16,296,949,315.97
  5. Step 5: Solve for x
    x = 16,296,949,315.97/143,028.30
  6. Step 6: Final answer
    x = 113,942.13

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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.