Finding the Fourth Proportional to 104.13, 156.21 and 49.96
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Solution
The fourth proportional to 104.13, 156.21 and 49.96 is: 74.95
Step by Step Solution
- Step 1: Write the proportion equation
104.13 : 156.21 = 49.96 : x - Step 2: Convert to fraction form
104.13/156.21 = 49.96/x - Step 3: Cross multiply
104.13x = 156.21 × 49.96 - Step 4: Simplify right side
104.13x = 7,804.25 - Step 5: Solve for x
x = 7,804.25/104.13 - Step 6: Final answer
x = 74.95
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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.