Finding the Fourth Proportional to 129,968.70, 194,661.45 and 127,052.70
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Solution
The fourth proportional to 129,968.70, 194,661.45 and 127,052.70 is: 190,293.99
Step by Step Solution
- Step 1: Write the proportion equation
129,968.70 : 194,661.45 = 127,052.70 : x - Step 2: Convert to fraction form
129,968.70/194,661.45 = 127,052.70/x - Step 3: Cross multiply
129,968.70x = 194,661.45 × 127,052.70 - Step 4: Simplify right side
129,968.70x = 24,732,262,808.42 - Step 5: Solve for x
x = 24,732,262,808.42/129,968.70 - Step 6: Final answer
x = 190,293.99
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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.