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Finding the Fourth Proportional to 111,666.40, 167,499.60 and 64,427.20

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Solution

The fourth proportional to 111,666.40, 167,499.60 and 64,427.20 is: 96,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,666.40 : 167,499.60 = 64,427.20 : x
  2. Step 2: Convert to fraction form
    111,666.40/167,499.60 = 64,427.20/x
  3. Step 3: Cross multiply
    111,666.40x = 167,499.60 × 64,427.20
  4. Step 4: Simplify right side
    111,666.40x = 10,791,530,229.12
  5. Step 5: Solve for x
    x = 10,791,530,229.12/111,666.40
  6. Step 6: Final answer
    x = 96,640.80

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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.