Finding the Fourth Proportional to 129,506.89, 194,284.94 and 45,290.99
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Solution
The fourth proportional to 129,506.89, 194,284.94 and 45,290.99 is: 67,945.09
Step by Step Solution
- Step 1: Write the proportion equation
129,506.89 : 194,284.94 = 45,290.99 : x - Step 2: Convert to fraction form
129,506.89/194,284.94 = 45,290.99/x - Step 3: Cross multiply
129,506.89x = 194,284.94 × 45,290.99 - Step 4: Simplify right side
129,506.89x = 8,799,357,274.69 - Step 5: Solve for x
x = 8,799,357,274.69/129,506.89 - Step 6: Final answer
x = 67,945.09
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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.