Home / 82,219.51-113,571.82-66,147.33

Finding the Fourth Proportional to 82,219.51, 113,571.82 and 66,147.33

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Solution

The fourth proportional to 82,219.51, 113,571.82 and 66,147.33 is: 91,370.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,219.51 : 113,571.82 = 66,147.33 : x
  2. Step 2: Convert to fraction form
    82,219.51/113,571.82 = 66,147.33/x
  3. Step 3: Cross multiply
    82,219.51x = 113,571.82 × 66,147.33
  4. Step 4: Simplify right side
    82,219.51x = 7,512,473,164.82
  5. Step 5: Solve for x
    x = 7,512,473,164.82/82,219.51
  6. Step 6: Final answer
    x = 91,370.94

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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.