Home / 123,450.06-170,361.09-66,861.44

Finding the Fourth Proportional to 123,450.06, 170,361.09 and 66,861.44

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Solution

The fourth proportional to 123,450.06, 170,361.09 and 66,861.44 is: 92,268.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,450.06 : 170,361.09 = 66,861.44 : x
  2. Step 2: Convert to fraction form
    123,450.06/170,361.09 = 66,861.44/x
  3. Step 3: Cross multiply
    123,450.06x = 170,361.09 × 66,861.44
  4. Step 4: Simplify right side
    123,450.06x = 11,390,587,797.37
  5. Step 5: Solve for x
    x = 11,390,587,797.37/123,450.06
  6. Step 6: Final answer
    x = 92,268.79

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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.