Finding the Fourth Proportional to 122,181.43, 168,607.64 and 71,190.99
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Solution
The fourth proportional to 122,181.43, 168,607.64 and 71,190.99 is: 98,241.97
Step by Step Solution
- Step 1: Write the proportion equation
122,181.43 : 168,607.64 = 71,190.99 : x - Step 2: Convert to fraction form
122,181.43/168,607.64 = 71,190.99/x - Step 3: Cross multiply
122,181.43x = 168,607.64 × 71,190.99 - Step 4: Simplify right side
122,181.43x = 12,003,344,813.16 - Step 5: Solve for x
x = 12,003,344,813.16/122,181.43 - Step 6: Final answer
x = 98,241.97
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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.