Finding the Fourth Proportional to 114.80, 172.23 and 59.99
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Solution
The fourth proportional to 114.80, 172.23 and 59.99 is: 89.99
Step by Step Solution
- Step 1: Write the proportion equation
114.80 : 172.23 = 59.99 : x - Step 2: Convert to fraction form
114.80/172.23 = 59.99/x - Step 3: Cross multiply
114.80x = 172.23 × 59.99 - Step 4: Simplify right side
114.80x = 10,331.22 - Step 5: Solve for x
x = 10,331.22/114.80 - Step 6: Final answer
x = 89.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.