Home / 110,828.20-152,889.78-80,566.60

Finding the Fourth Proportional to 110,828.20, 152,889.78 and 80,566.60

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Solution

The fourth proportional to 110,828.20, 152,889.78 and 80,566.60 is: 111,143.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,828.20 : 152,889.78 = 80,566.60 : x
  2. Step 2: Convert to fraction form
    110,828.20/152,889.78 = 80,566.60/x
  3. Step 3: Cross multiply
    110,828.20x = 152,889.78 × 80,566.60
  4. Step 4: Simplify right side
    110,828.20x = 12,317,809,749.35
  5. Step 5: Solve for x
    x = 12,317,809,749.35/110,828.20
  6. Step 6: Final answer
    x = 111,143.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.