Finding the Fourth Proportional to 138,775.36, 208,168.80 and 44,003.44
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Solution
The fourth proportional to 138,775.36, 208,168.80 and 44,003.44 is: 66,006.99
Step by Step Solution
- Step 1: Write the proportion equation
138,775.36 : 208,168.80 = 44,003.44 : x - Step 2: Convert to fraction form
138,775.36/208,168.80 = 44,003.44/x - Step 3: Cross multiply
138,775.36x = 208,168.80 × 44,003.44 - Step 4: Simplify right side
138,775.36x = 9,160,143,300.67 - Step 5: Solve for x
x = 9,160,143,300.67/138,775.36 - Step 6: Final answer
x = 66,006.99
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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.