Finding the Fourth Proportional to 115.97, 173.59 and 79.97
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Solution
The fourth proportional to 115.97, 173.59 and 79.97 is: 119.70
Step by Step Solution
- Step 1: Write the proportion equation
115.97 : 173.59 = 79.97 : x - Step 2: Convert to fraction form
115.97/173.59 = 79.97/x - Step 3: Cross multiply
115.97x = 173.59 × 79.97 - Step 4: Simplify right side
115.97x = 13,881.99 - Step 5: Solve for x
x = 13,881.99/115.97 - Step 6: Final answer
x = 119.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.