Finding the Fourth Proportional to 129,235.12, 193,852.79 and 40,495.54
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Solution
The fourth proportional to 129,235.12, 193,852.79 and 40,495.54 is: 60,743.35
Step by Step Solution
- Step 1: Write the proportion equation
129,235.12 : 193,852.79 = 40,495.54 : x - Step 2: Convert to fraction form
129,235.12/193,852.79 = 40,495.54/x - Step 3: Cross multiply
129,235.12x = 193,852.79 × 40,495.54 - Step 4: Simplify right side
129,235.12x = 7,850,173,209.08 - Step 5: Solve for x
x = 7,850,173,209.08/129,235.12 - Step 6: Final answer
x = 60,743.35
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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.