Finding the Fourth Proportional to 129,990.88, 194,986.36 and 46,884.88
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Solution
The fourth proportional to 129,990.88, 194,986.36 and 46,884.88 is: 70,327.33
Step by Step Solution
- Step 1: Write the proportion equation
129,990.88 : 194,986.36 = 46,884.88 : x - Step 2: Convert to fraction form
129,990.88/194,986.36 = 46,884.88/x - Step 3: Cross multiply
129,990.88x = 194,986.36 × 46,884.88 - Step 4: Simplify right side
129,990.88x = 9,141,912,090.24 - Step 5: Solve for x
x = 9,141,912,090.24/129,990.88 - Step 6: Final answer
x = 70,327.33
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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.