Home / 127,519.44-191,079.20-80,673.36

Finding the Fourth Proportional to 127,519.44, 191,079.20 and 80,673.36

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Solution

The fourth proportional to 127,519.44, 191,079.20 and 80,673.36 is: 120,883.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,519.44 : 191,079.20 = 80,673.36 : x
  2. Step 2: Convert to fraction form
    127,519.44/191,079.20 = 80,673.36/x
  3. Step 3: Cross multiply
    127,519.44x = 191,079.20 × 80,673.36
  4. Step 4: Simplify right side
    127,519.44x = 15,415,001,090.11
  5. Step 5: Solve for x
    x = 15,415,001,090.11/127,519.44
  6. Step 6: Final answer
    x = 120,883.54

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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.