Home / 73,270.20-109,775.70-68,604.60

Finding the Fourth Proportional to 73,270.20, 109,775.70 and 68,604.60

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Solution

The fourth proportional to 73,270.20, 109,775.70 and 68,604.60 is: 102,785.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,270.20 : 109,775.70 = 68,604.60 : x
  2. Step 2: Convert to fraction form
    73,270.20/109,775.70 = 68,604.60/x
  3. Step 3: Cross multiply
    73,270.20x = 109,775.70 × 68,604.60
  4. Step 4: Simplify right side
    73,270.20x = 7,531,117,988.22
  5. Step 5: Solve for x
    x = 7,531,117,988.22/73,270.20
  6. Step 6: Final answer
    x = 102,785.55

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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.