Finding the Fourth Proportional to 136,428.99, 188,277.68 and 75,999.62
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Solution
The fourth proportional to 136,428.99, 188,277.68 and 75,999.62 is: 104,882.63
Step by Step Solution
- Step 1: Write the proportion equation
136,428.99 : 188,277.68 = 75,999.62 : x - Step 2: Convert to fraction form
136,428.99/188,277.68 = 75,999.62/x - Step 3: Cross multiply
136,428.99x = 188,277.68 × 75,999.62 - Step 4: Simplify right side
136,428.99x = 14,309,030,813.10 - Step 5: Solve for x
x = 14,309,030,813.10/136,428.99 - Step 6: Final answer
x = 104,882.63
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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.