Finding the Fourth Proportional to 124.97, 186.60 and 98.99
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Solution
The fourth proportional to 124.97, 186.60 and 98.99 is: 147.82
Step by Step Solution
- Step 1: Write the proportion equation
124.97 : 186.60 = 98.99 : x - Step 2: Convert to fraction form
124.97/186.60 = 98.99/x - Step 3: Cross multiply
124.97x = 186.60 × 98.99 - Step 4: Simplify right side
124.97x = 18,472.72 - Step 5: Solve for x
x = 18,472.72/124.97 - Step 6: Final answer
x = 147.82
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.