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Finding the Fourth Proportional to 111,644.40, 167,466.60 and 28,538.40

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Solution

The fourth proportional to 111,644.40, 167,466.60 and 28,538.40 is: 42,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,644.40 : 167,466.60 = 28,538.40 : x
  2. Step 2: Convert to fraction form
    111,644.40/167,466.60 = 28,538.40/x
  3. Step 3: Cross multiply
    111,644.40x = 167,466.60 × 28,538.40
  4. Step 4: Simplify right side
    111,644.40x = 4,779,228,817.44
  5. Step 5: Solve for x
    x = 4,779,228,817.44/111,644.40
  6. Step 6: Final answer
    x = 42,807.60

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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.