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Finding the Fourth Proportional to 111,336.30, 167,004.45 and 66,940.20

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Solution

The fourth proportional to 111,336.30, 167,004.45 and 66,940.20 is: 100,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,336.30 : 167,004.45 = 66,940.20 : x
  2. Step 2: Convert to fraction form
    111,336.30/167,004.45 = 66,940.20/x
  3. Step 3: Cross multiply
    111,336.30x = 167,004.45 × 66,940.20
  4. Step 4: Simplify right side
    111,336.30x = 11,179,311,283.89
  5. Step 5: Solve for x
    x = 11,179,311,283.89/111,336.30
  6. Step 6: Final answer
    x = 100,410.30

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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.