Finding the Fourth Proportional to 130,940.09, 196,378.99 and 36,168.17
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Solution
The fourth proportional to 130,940.09, 196,378.99 and 36,168.17 is: 54,243.65
Step by Step Solution
- Step 1: Write the proportion equation
130,940.09 : 196,378.99 = 36,168.17 : x - Step 2: Convert to fraction form
130,940.09/196,378.99 = 36,168.17/x - Step 3: Cross multiply
130,940.09x = 196,378.99 × 36,168.17 - Step 4: Simplify right side
130,940.09x = 7,102,668,513.91 - Step 5: Solve for x
x = 7,102,668,513.91/130,940.09 - Step 6: Final answer
x = 54,243.65
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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.