Finding the Fourth Proportional to 129,947.60, 194,928.36 and 41,208.08
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Solution
The fourth proportional to 129,947.60, 194,928.36 and 41,208.08 is: 61,814.33
Step by Step Solution
- Step 1: Write the proportion equation
129,947.60 : 194,928.36 = 41,208.08 : x - Step 2: Convert to fraction form
129,947.60/194,928.36 = 41,208.08/x - Step 3: Cross multiply
129,947.60x = 194,928.36 × 41,208.08 - Step 4: Simplify right side
129,947.60x = 8,032,623,453.15 - Step 5: Solve for x
x = 8,032,623,453.15/129,947.60 - Step 6: Final answer
x = 61,814.33
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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.