Finding the Fourth Proportional to 129,368.14, 194,060.40 and 40,625.14
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Solution
The fourth proportional to 129,368.14, 194,060.40 and 40,625.14 is: 60,940.28
Step by Step Solution
- Step 1: Write the proportion equation
129,368.14 : 194,060.40 = 40,625.14 : x - Step 2: Convert to fraction form
129,368.14/194,060.40 = 40,625.14/x - Step 3: Cross multiply
129,368.14x = 194,060.40 × 40,625.14 - Step 4: Simplify right side
129,368.14x = 7,883,730,918.46 - Step 5: Solve for x
x = 7,883,730,918.46/129,368.14 - Step 6: Final answer
x = 60,940.28
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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.