Finding the Fourth Proportional to 157.99, 236.93 and 66.75
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Solution
The fourth proportional to 157.99, 236.93 and 66.75 is: 100.10
Step by Step Solution
- Step 1: Write the proportion equation
157.99 : 236.93 = 66.75 : x - Step 2: Convert to fraction form
157.99/236.93 = 66.75/x - Step 3: Cross multiply
157.99x = 236.93 × 66.75 - Step 4: Simplify right side
157.99x = 15,814.52 - Step 5: Solve for x
x = 15,814.52/157.99 - Step 6: Final answer
x = 100.10
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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.