Finding the Fourth Proportional to 104.63, 157.74 and 99
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Solution
The fourth proportional to 104.63, 157.74 and 99 is: 149.26
Step by Step Solution
- Step 1: Write the proportion equation
104.63 : 157.74 = 99 : x - Step 2: Convert to fraction form
104.63/157.74 = 99/x - Step 3: Cross multiply
104.63x = 157.74 × 99 - Step 4: Simplify right side
104.63x = 15,616.26 - Step 5: Solve for x
x = 15,616.26/104.63 - Step 6: Final answer
x = 149.26
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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.