Finding the Fourth Proportional to 100.16, 137.92 and 98.03
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Solution
The fourth proportional to 100.16, 137.92 and 98.03 is: 134.99
Step by Step Solution
- Step 1: Write the proportion equation
100.16 : 137.92 = 98.03 : x - Step 2: Convert to fraction form
100.16/137.92 = 98.03/x - Step 3: Cross multiply
100.16x = 137.92 × 98.03 - Step 4: Simplify right side
100.16x = 13,520.30 - Step 5: Solve for x
x = 13,520.30/100.16 - Step 6: Final answer
x = 134.99
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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.