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Finding the Fourth Proportional to 111,742.70, 167,719.38 and 40,733.96

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Solution

The fourth proportional to 111,742.70, 167,719.38 and 40,733.96 is: 61,139.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,742.70 : 167,719.38 = 40,733.96 : x
  2. Step 2: Convert to fraction form
    111,742.70/167,719.38 = 40,733.96/x
  3. Step 3: Cross multiply
    111,742.70x = 167,719.38 × 40,733.96
  4. Step 4: Simplify right side
    111,742.70x = 6,831,874,516.14
  5. Step 5: Solve for x
    x = 6,831,874,516.14/111,742.70
  6. Step 6: Final answer
    x = 61,139.34

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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.