Home / 123,912.39-170,996.99-67,323.36

Finding the Fourth Proportional to 123,912.39, 170,996.99 and 67,323.36

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Solution

The fourth proportional to 123,912.39, 170,996.99 and 67,323.36 is: 92,905.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,912.39 : 170,996.99 = 67,323.36 : x
  2. Step 2: Convert to fraction form
    123,912.39/170,996.99 = 67,323.36/x
  3. Step 3: Cross multiply
    123,912.39x = 170,996.99 × 67,323.36
  4. Step 4: Simplify right side
    123,912.39x = 11,512,091,916.69
  5. Step 5: Solve for x
    x = 11,512,091,916.69/123,912.39
  6. Step 6: Final answer
    x = 92,905.09

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1.5x scale

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.