Home / 104,015.40-156,176.70-80,668.20

Finding the Fourth Proportional to 104,015.40, 156,176.70 and 80,668.20

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Solution

The fourth proportional to 104,015.40, 156,176.70 and 80,668.20 is: 121,121.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,015.40 : 156,176.70 = 80,668.20 : x
  2. Step 2: Convert to fraction form
    104,015.40/156,176.70 = 80,668.20/x
  3. Step 3: Cross multiply
    104,015.40x = 156,176.70 × 80,668.20
  4. Step 4: Simplify right side
    104,015.40x = 12,598,493,270.94
  5. Step 5: Solve for x
    x = 12,598,493,270.94/104,015.40
  6. Step 6: Final answer
    x = 121,121.42

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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.