Finding the Fourth Proportional to 103,984.44, 155,976.68 and 29,115.62
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Solution
The fourth proportional to 103,984.44, 155,976.68 and 29,115.62 is: 43,673.43
Step by Step Solution
- Step 1: Write the proportion equation
103,984.44 : 155,976.68 = 29,115.62 : x - Step 2: Convert to fraction form
103,984.44/155,976.68 = 29,115.62/x - Step 3: Cross multiply
103,984.44x = 155,976.68 × 29,115.62 - Step 4: Simplify right side
103,984.44x = 4,541,356,818.28 - Step 5: Solve for x
x = 4,541,356,818.28/103,984.44 - Step 6: Final answer
x = 43,673.43
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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.