Finding the Fourth Proportional to 103,626.96, 155,440.44 and 68,558.41
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Solution
The fourth proportional to 103,626.96, 155,440.44 and 68,558.41 is: 102,837.62
Step by Step Solution
- Step 1: Write the proportion equation
103,626.96 : 155,440.44 = 68,558.41 : x - Step 2: Convert to fraction form
103,626.96/155,440.44 = 68,558.41/x - Step 3: Cross multiply
103,626.96x = 155,440.44 × 68,558.41 - Step 4: Simplify right side
103,626.96x = 10,656,749,416.10 - Step 5: Solve for x
x = 10,656,749,416.10/103,626.96 - Step 6: Final answer
x = 102,837.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.