Finding the Fourth Proportional to 129,295.92, 193,944.12 and 40,556.31
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Solution
The fourth proportional to 129,295.92, 193,944.12 and 40,556.31 is: 60,834.53
Step by Step Solution
- Step 1: Write the proportion equation
129,295.92 : 193,944.12 = 40,556.31 : x - Step 2: Convert to fraction form
129,295.92/193,944.12 = 40,556.31/x - Step 3: Cross multiply
129,295.92x = 193,944.12 × 40,556.31 - Step 4: Simplify right side
129,295.92x = 7,865,656,883.68 - Step 5: Solve for x
x = 7,865,656,883.68/129,295.92 - Step 6: Final answer
x = 60,834.53
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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.