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Finding the Fourth Proportional to 111,268.40, 166,902.60 and 73,878.80

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Solution

The fourth proportional to 111,268.40, 166,902.60 and 73,878.80 is: 110,818.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,268.40 : 166,902.60 = 73,878.80 : x
  2. Step 2: Convert to fraction form
    111,268.40/166,902.60 = 73,878.80/x
  3. Step 3: Cross multiply
    111,268.40x = 166,902.60 × 73,878.80
  4. Step 4: Simplify right side
    111,268.40x = 12,330,563,804.88
  5. Step 5: Solve for x
    x = 12,330,563,804.88/111,268.40
  6. Step 6: Final answer
    x = 110,818.20

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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.