Finding the Fourth Proportional to 129,398.11, 194,095.23 and 40,656.94
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Solution
The fourth proportional to 129,398.11, 194,095.23 and 40,656.94 is: 60,984.80
Step by Step Solution
- Step 1: Write the proportion equation
129,398.11 : 194,095.23 = 40,656.94 : x - Step 2: Convert to fraction form
129,398.11/194,095.23 = 40,656.94/x - Step 3: Cross multiply
129,398.11x = 194,095.23 × 40,656.94 - Step 4: Simplify right side
129,398.11x = 7,891,318,120.40 - Step 5: Solve for x
x = 7,891,318,120.40/129,398.11 - Step 6: Final answer
x = 60,984.80
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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.