Home / 143,172.16-197,606.61-82,745.35

Finding the Fourth Proportional to 143,172.16, 197,606.61 and 82,745.35

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Solution

The fourth proportional to 143,172.16, 197,606.61 and 82,745.35 is: 114,205.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,172.16 : 197,606.61 = 82,745.35 : x
  2. Step 2: Convert to fraction form
    143,172.16/197,606.61 = 82,745.35/x
  3. Step 3: Cross multiply
    143,172.16x = 197,606.61 × 82,745.35
  4. Step 4: Simplify right side
    143,172.16x = 16,351,028,106.76
  5. Step 5: Solve for x
    x = 16,351,028,106.76/143,172.16
  6. Step 6: Final answer
    x = 114,205.36

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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.