Finding the Fourth Proportional to 129,968.70, 194,953.05 and 110,941.80
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Solution
The fourth proportional to 129,968.70, 194,953.05 and 110,941.80 is: 166,412.70
Step by Step Solution
- Step 1: Write the proportion equation
129,968.70 : 194,953.05 = 110,941.80 : x - Step 2: Convert to fraction form
129,968.70/194,953.05 = 110,941.80/x - Step 3: Cross multiply
129,968.70x = 194,953.05 × 110,941.80 - Step 4: Simplify right side
129,968.70x = 21,628,442,282.49 - Step 5: Solve for x
x = 21,628,442,282.49/129,968.70 - Step 6: Final answer
x = 166,412.70
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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.