Finding the Fourth Proportional to 122,270.40, 168,741.28 and 68,558.96
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Solution
The fourth proportional to 122,270.40, 168,741.28 and 68,558.96 is: 94,615.92
Step by Step Solution
- Step 1: Write the proportion equation
122,270.40 : 168,741.28 = 68,558.96 : x - Step 2: Convert to fraction form
122,270.40/168,741.28 = 68,558.96/x - Step 3: Cross multiply
122,270.40x = 168,741.28 × 68,558.96 - Step 4: Simplify right side
122,270.40x = 11,568,726,665.87 - Step 5: Solve for x
x = 11,568,726,665.87/122,270.40 - Step 6: Final answer
x = 94,615.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.