Finding the Fourth Proportional to 129,326.69, 193,998.24 and 40,583.70
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Solution
The fourth proportional to 129,326.69, 193,998.24 and 40,583.70 is: 60,878.12
Step by Step Solution
- Step 1: Write the proportion equation
129,326.69 : 193,998.24 = 40,583.70 : x - Step 2: Convert to fraction form
129,326.69/193,998.24 = 40,583.70/x - Step 3: Cross multiply
129,326.69x = 193,998.24 × 40,583.70 - Step 4: Simplify right side
129,326.69x = 7,873,165,199.78 - Step 5: Solve for x
x = 7,873,165,199.78/129,326.69 - Step 6: Final answer
x = 60,878.12
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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.