Finding the Fourth Proportional to 131,634.05, 181,653.86 and 74,273.80
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Solution
The fourth proportional to 131,634.05, 181,653.86 and 74,273.80 is: 102,497.20
Step by Step Solution
- Step 1: Write the proportion equation
131,634.05 : 181,653.86 = 74,273.80 : x - Step 2: Convert to fraction form
131,634.05/181,653.86 = 74,273.80/x - Step 3: Cross multiply
131,634.05x = 181,653.86 × 74,273.80 - Step 4: Simplify right side
131,634.05x = 13,492,122,121.23 - Step 5: Solve for x
x = 13,492,122,121.23/131,634.05 - Step 6: Final answer
x = 102,497.20
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.