Finding the Fourth Proportional to 129,295.17, 193,942.99 and 40,555.55
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Solution
The fourth proportional to 129,295.17, 193,942.99 and 40,555.55 is: 60,833.40
Step by Step Solution
- Step 1: Write the proportion equation
129,295.17 : 193,942.99 = 40,555.55 : x - Step 2: Convert to fraction form
129,295.17/193,942.99 = 40,555.55/x - Step 3: Cross multiply
129,295.17x = 193,942.99 × 40,555.55 - Step 4: Simplify right side
129,295.17x = 7,865,465,163.65 - Step 5: Solve for x
x = 7,865,465,163.65/129,295.17 - Step 6: Final answer
x = 60,833.40
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1.5x scale
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.