Home / 127,198.80-190,798.20-38,514.60

Finding the Fourth Proportional to 127,198.80, 190,798.20 and 38,514.60

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Solution

The fourth proportional to 127,198.80, 190,798.20 and 38,514.60 is: 57,771.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,198.80 : 190,798.20 = 38,514.60 : x
  2. Step 2: Convert to fraction form
    127,198.80/190,798.20 = 38,514.60/x
  3. Step 3: Cross multiply
    127,198.80x = 190,798.20 × 38,514.60
  4. Step 4: Simplify right side
    127,198.80x = 7,348,516,353.72
  5. Step 5: Solve for x
    x = 7,348,516,353.72/127,198.80
  6. Step 6: Final answer
    x = 57,771.90

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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.