Finding the Fourth Proportional to 117,028.69, 161,521.49 and 66,727.69
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Solution
The fourth proportional to 117,028.69, 161,521.49 and 66,727.69 is: 92,096.70
Step by Step Solution
- Step 1: Write the proportion equation
117,028.69 : 161,521.49 = 66,727.69 : x - Step 2: Convert to fraction form
117,028.69/161,521.49 = 66,727.69/x - Step 3: Cross multiply
117,028.69x = 161,521.49 × 66,727.69 - Step 4: Simplify right side
117,028.69x = 10,777,955,676.07 - Step 5: Solve for x
x = 10,777,955,676.07/117,028.69 - Step 6: Final answer
x = 92,096.70
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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.