Finding the Fourth Proportional to 74,181.05, 110,731.96 and 68,698.97
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Solution
The fourth proportional to 74,181.05, 110,731.96 and 68,698.97 is: 102,548.72
Step by Step Solution
- Step 1: Write the proportion equation
74,181.05 : 110,731.96 = 68,698.97 : x - Step 2: Convert to fraction form
74,181.05/110,731.96 = 68,698.97/x - Step 3: Cross multiply
74,181.05x = 110,731.96 × 68,698.97 - Step 4: Simplify right side
74,181.05x = 7,607,170,872.67 - Step 5: Solve for x
x = 7,607,170,872.67/74,181.05 - Step 6: Final answer
x = 102,548.72
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.