Finding the Fourth Proportional to 120.99, 181.57 and 93.99
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Solution
The fourth proportional to 120.99, 181.57 and 93.99 is: 141.05
Step by Step Solution
- Step 1: Write the proportion equation
120.99 : 181.57 = 93.99 : x - Step 2: Convert to fraction form
120.99/181.57 = 93.99/x - Step 3: Cross multiply
120.99x = 181.57 × 93.99 - Step 4: Simplify right side
120.99x = 17,065.98 - Step 5: Solve for x
x = 17,065.98/120.99 - Step 6: Final answer
x = 141.05
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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.