Finding the Fourth Proportional to 161.99, 243.09 and 125.99
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Solution
The fourth proportional to 161.99, 243.09 and 125.99 is: 189.07
Step by Step Solution
- Step 1: Write the proportion equation
161.99 : 243.09 = 125.99 : x - Step 2: Convert to fraction form
161.99/243.09 = 125.99/x - Step 3: Cross multiply
161.99x = 243.09 × 125.99 - Step 4: Simplify right side
161.99x = 30,626.91 - Step 5: Solve for x
x = 30,626.91/161.99 - Step 6: Final answer
x = 189.07
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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.