Finding the Fourth Proportional to 170.84, 235.75 and 93.21
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Solution
The fourth proportional to 170.84, 235.75 and 93.21 is: 128.63
Step by Step Solution
- Step 1: Write the proportion equation
170.84 : 235.75 = 93.21 : x - Step 2: Convert to fraction form
170.84/235.75 = 93.21/x - Step 3: Cross multiply
170.84x = 235.75 × 93.21 - Step 4: Simplify right side
170.84x = 21,974.99 - Step 5: Solve for x
x = 21,974.99/170.84 - Step 6: Final answer
x = 128.63
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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.