Finding the Fourth Proportional to 102,769.92, 141,814.64 and 62,478.09
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Solution
The fourth proportional to 102,769.92, 141,814.64 and 62,478.09 is: 86,214.99
Step by Step Solution
- Step 1: Write the proportion equation
102,769.92 : 141,814.64 = 62,478.09 : x - Step 2: Convert to fraction form
102,769.92/141,814.64 = 62,478.09/x - Step 3: Cross multiply
102,769.92x = 141,814.64 × 62,478.09 - Step 4: Simplify right side
102,769.92x = 8,860,307,528.85 - Step 5: Solve for x
x = 8,860,307,528.85/102,769.92 - Step 6: Final answer
x = 86,214.99
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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.