Home / 127,520.44-191,080.70-80,674.36

Finding the Fourth Proportional to 127,520.44, 191,080.70 and 80,674.36

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Solution

The fourth proportional to 127,520.44, 191,080.70 and 80,674.36 is: 120,885.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,520.44 : 191,080.70 = 80,674.36 : x
  2. Step 2: Convert to fraction form
    127,520.44/191,080.70 = 80,674.36/x
  3. Step 3: Cross multiply
    127,520.44x = 191,080.70 × 80,674.36
  4. Step 4: Simplify right side
    127,520.44x = 15,415,313,180.85
  5. Step 5: Solve for x
    x = 15,415,313,180.85/127,520.44
  6. Step 6: Final answer
    x = 120,885.04

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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.