Home / 123,125.26-169,912.86-66,536.64

Finding the Fourth Proportional to 123,125.26, 169,912.86 and 66,536.64

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Solution

The fourth proportional to 123,125.26, 169,912.86 and 66,536.64 is: 91,820.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,125.26 : 169,912.86 = 66,536.64 : x
  2. Step 2: Convert to fraction form
    123,125.26/169,912.86 = 66,536.64/x
  3. Step 3: Cross multiply
    123,125.26x = 169,912.86 × 66,536.64
  4. Step 4: Simplify right side
    123,125.26x = 11,305,430,797.19
  5. Step 5: Solve for x
    x = 11,305,430,797.19/123,125.26
  6. Step 6: Final answer
    x = 91,820.56

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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.