Home / 112,072.80-167,961.60-82,351.20

Finding the Fourth Proportional to 112,072.80, 167,961.60 and 82,351.20

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Solution

The fourth proportional to 112,072.80, 167,961.60 and 82,351.20 is: 123,418.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,072.80 : 167,961.60 = 82,351.20 : x
  2. Step 2: Convert to fraction form
    112,072.80/167,961.60 = 82,351.20/x
  3. Step 3: Cross multiply
    112,072.80x = 167,961.60 × 82,351.20
  4. Step 4: Simplify right side
    112,072.80x = 13,831,839,313.92
  5. Step 5: Solve for x
    x = 13,831,839,313.92/112,072.80
  6. Step 6: Final answer
    x = 123,418.34

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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.