Finding the Fourth Proportional to 122,212.96, 168,401.02 and 98,243.44
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Solution
The fourth proportional to 122,212.96, 168,401.02 and 98,243.44 is: 135,372.68
Step by Step Solution
- Step 1: Write the proportion equation
122,212.96 : 168,401.02 = 98,243.44 : x - Step 2: Convert to fraction form
122,212.96/168,401.02 = 98,243.44/x - Step 3: Cross multiply
122,212.96x = 168,401.02 × 98,243.44 - Step 4: Simplify right side
122,212.96x = 16,544,295,504.31 - Step 5: Solve for x
x = 16,544,295,504.31/122,212.96 - Step 6: Final answer
x = 135,372.68
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1.5x scale
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.