Finding the Fourth Proportional to 114.94, 172.27 and 53.99
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Solution
The fourth proportional to 114.94, 172.27 and 53.99 is: 80.92
Step by Step Solution
- Step 1: Write the proportion equation
114.94 : 172.27 = 53.99 : x - Step 2: Convert to fraction form
114.94/172.27 = 53.99/x - Step 3: Cross multiply
114.94x = 172.27 × 53.99 - Step 4: Simplify right side
114.94x = 9,300.86 - Step 5: Solve for x
x = 9,300.86/114.94 - Step 6: Final answer
x = 80.92
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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.