Finding the Fourth Proportional to 129,235.36, 193,852.80 and 40,495.66
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Solution
The fourth proportional to 129,235.36, 193,852.80 and 40,495.66 is: 60,743.41
Step by Step Solution
- Step 1: Write the proportion equation
129,235.36 : 193,852.80 = 40,495.66 : x - Step 2: Convert to fraction form
129,235.36/193,852.80 = 40,495.66/x - Step 3: Cross multiply
129,235.36x = 193,852.80 × 40,495.66 - Step 4: Simplify right side
129,235.36x = 7,850,197,078.85 - Step 5: Solve for x
x = 7,850,197,078.85/129,235.36 - Step 6: Final answer
x = 60,743.41
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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.