Finding the Fourth Proportional to 100.19, 150.29 and 68.06
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Solution
The fourth proportional to 100.19, 150.29 and 68.06 is: 102.09
Step by Step Solution
- Step 1: Write the proportion equation
100.19 : 150.29 = 68.06 : x - Step 2: Convert to fraction form
100.19/150.29 = 68.06/x - Step 3: Cross multiply
100.19x = 150.29 × 68.06 - Step 4: Simplify right side
100.19x = 10,229.03 - Step 5: Solve for x
x = 10,229.03/100.19 - Step 6: Final answer
x = 102.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.