Home / 127,090.62-190,570.77-67,151.33

Finding the Fourth Proportional to 127,090.62, 190,570.77 and 67,151.33

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Solution

The fourth proportional to 127,090.62, 190,570.77 and 67,151.33 is: 100,692.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,090.62 : 190,570.77 = 67,151.33 : x
  2. Step 2: Convert to fraction form
    127,090.62/190,570.77 = 67,151.33/x
  3. Step 3: Cross multiply
    127,090.62x = 190,570.77 × 67,151.33
  4. Step 4: Simplify right side
    127,090.62x = 12,797,079,711.77
  5. Step 5: Solve for x
    x = 12,797,079,711.77/127,090.62
  6. Step 6: Final answer
    x = 100,692.56

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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.