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Finding the Fourth Proportional to 111,076.40, 166,614.60 and 73,686.80

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Solution

The fourth proportional to 111,076.40, 166,614.60 and 73,686.80 is: 110,530.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,076.40 : 166,614.60 = 73,686.80 : x
  2. Step 2: Convert to fraction form
    111,076.40/166,614.60 = 73,686.80/x
  3. Step 3: Cross multiply
    111,076.40x = 166,614.60 × 73,686.80
  4. Step 4: Simplify right side
    111,076.40x = 12,277,296,707.28
  5. Step 5: Solve for x
    x = 12,277,296,707.28/111,076.40
  6. Step 6: Final answer
    x = 110,530.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.