Finding the Fourth Proportional to 170.36, 235.12 and 103.99
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Solution
The fourth proportional to 170.36, 235.12 and 103.99 is: 143.52
Step by Step Solution
- Step 1: Write the proportion equation
170.36 : 235.12 = 103.99 : x - Step 2: Convert to fraction form
170.36/235.12 = 103.99/x - Step 3: Cross multiply
170.36x = 235.12 × 103.99 - Step 4: Simplify right side
170.36x = 24,450.13 - Step 5: Solve for x
x = 24,450.13/170.36 - Step 6: Final answer
x = 143.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.