Finding the Fourth Proportional to 117,805.75, 162,605.36 and 69,435.79
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Solution
The fourth proportional to 117,805.75, 162,605.36 and 69,435.79 is: 95,841.09
Step by Step Solution
- Step 1: Write the proportion equation
117,805.75 : 162,605.36 = 69,435.79 : x - Step 2: Convert to fraction form
117,805.75/162,605.36 = 69,435.79/x - Step 3: Cross multiply
117,805.75x = 162,605.36 × 69,435.79 - Step 4: Simplify right side
117,805.75x = 11,290,631,396.91 - Step 5: Solve for x
x = 11,290,631,396.91/117,805.75 - Step 6: Final answer
x = 95,841.09
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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.