Finding the Fourth Proportional to 188,487.92, 260,114.81 and 103,604.99
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Solution
The fourth proportional to 188,487.92, 260,114.81 and 103,604.99 is: 142,975.69
Step by Step Solution
- Step 1: Write the proportion equation
188,487.92 : 260,114.81 = 103,604.99 : x - Step 2: Convert to fraction form
188,487.92/260,114.81 = 103,604.99/x - Step 3: Cross multiply
188,487.92x = 260,114.81 × 103,604.99 - Step 4: Simplify right side
188,487.92x = 26,949,190,470.30 - Step 5: Solve for x
x = 26,949,190,470.30/188,487.92 - Step 6: Final answer
x = 142,975.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.