Finding the Fourth Proportional to 129,352.14, 193,902.18 and 61,866.60
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Solution
The fourth proportional to 129,352.14, 193,902.18 and 61,866.60 is: 92,739.62
Step by Step Solution
- Step 1: Write the proportion equation
129,352.14 : 193,902.18 = 61,866.60 : x - Step 2: Convert to fraction form
129,352.14/193,902.18 = 61,866.60/x - Step 3: Cross multiply
129,352.14x = 193,902.18 × 61,866.60 - Step 4: Simplify right side
129,352.14x = 11,996,068,609.19 - Step 5: Solve for x
x = 11,996,068,609.19/129,352.14 - Step 6: Final answer
x = 92,739.62
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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.