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Finding the Fourth Proportional to 111,387.60, 167,007.60 and 61,491.60

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Solution

The fourth proportional to 111,387.60, 167,007.60 and 61,491.60 is: 92,196.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,387.60 : 167,007.60 = 61,491.60 : x
  2. Step 2: Convert to fraction form
    111,387.60/167,007.60 = 61,491.60/x
  3. Step 3: Cross multiply
    111,387.60x = 167,007.60 × 61,491.60
  4. Step 4: Simplify right side
    111,387.60x = 10,269,564,536.16
  5. Step 5: Solve for x
    x = 10,269,564,536.16/111,387.60
  6. Step 6: Final answer
    x = 92,196.66

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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.