Home / 127,436.06-190,891.62-74,718.43

Finding the Fourth Proportional to 127,436.06, 190,891.62 and 74,718.43

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Solution

The fourth proportional to 127,436.06, 190,891.62 and 74,718.43 is: 111,923.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,436.06 : 190,891.62 = 74,718.43 : x
  2. Step 2: Convert to fraction form
    127,436.06/190,891.62 = 74,718.43/x
  3. Step 3: Cross multiply
    127,436.06x = 190,891.62 × 74,718.43
  4. Step 4: Simplify right side
    127,436.06x = 14,263,121,669.33
  5. Step 5: Solve for x
    x = 14,263,121,669.33/127,436.06
  6. Step 6: Final answer
    x = 111,923.75

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1.5x scale

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.