Finding the Fourth Proportional to 121.43, 181.77 and 93.99
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Solution
The fourth proportional to 121.43, 181.77 and 93.99 is: 140.70
Step by Step Solution
- Step 1: Write the proportion equation
121.43 : 181.77 = 93.99 : x - Step 2: Convert to fraction form
121.43/181.77 = 93.99/x - Step 3: Cross multiply
121.43x = 181.77 × 93.99 - Step 4: Simplify right side
121.43x = 17,084.56 - Step 5: Solve for x
x = 17,084.56/121.43 - Step 6: Final answer
x = 140.70
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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.