Finding the Fourth Proportional to 129,771.40, 194,657.10 and 46,673.80
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Solution
The fourth proportional to 129,771.40, 194,657.10 and 46,673.80 is: 70,010.70
Step by Step Solution
- Step 1: Write the proportion equation
129,771.40 : 194,657.10 = 46,673.80 : x - Step 2: Convert to fraction form
129,771.40/194,657.10 = 46,673.80/x - Step 3: Cross multiply
129,771.40x = 194,657.10 × 46,673.80 - Step 4: Simplify right side
129,771.40x = 9,085,386,553.98 - Step 5: Solve for x
x = 9,085,386,553.98/129,771.40 - Step 6: Final answer
x = 70,010.70
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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.