Finding the Fourth Proportional to 103,797.44, 155,696.13 and 74,272.94
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Solution
The fourth proportional to 103,797.44, 155,696.13 and 74,272.94 is: 111,409.39
Step by Step Solution
- Step 1: Write the proportion equation
103,797.44 : 155,696.13 = 74,272.94 : x - Step 2: Convert to fraction form
103,797.44/155,696.13 = 74,272.94/x - Step 3: Cross multiply
103,797.44x = 155,696.13 × 74,272.94 - Step 4: Simplify right side
103,797.44x = 11,564,008,543.24 - Step 5: Solve for x
x = 11,564,008,543.24/103,797.44 - Step 6: Final answer
x = 111,409.39
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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.