Finding the Fourth Proportional to 166.84, 229.84 and 129.99
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Solution
The fourth proportional to 166.84, 229.84 and 129.99 is: 179.08
Step by Step Solution
- Step 1: Write the proportion equation
166.84 : 229.84 = 129.99 : x - Step 2: Convert to fraction form
166.84/229.84 = 129.99/x - Step 3: Cross multiply
166.84x = 229.84 × 129.99 - Step 4: Simplify right side
166.84x = 29,876.90 - Step 5: Solve for x
x = 29,876.90/166.84 - Step 6: Final answer
x = 179.08
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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.