Finding the Fourth Proportional to 128,362.92, 192,593.70 and 53,463.03
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Solution
The fourth proportional to 128,362.92, 192,593.70 and 53,463.03 is: 80,215.09
Step by Step Solution
- Step 1: Write the proportion equation
128,362.92 : 192,593.70 = 53,463.03 : x - Step 2: Convert to fraction form
128,362.92/192,593.70 = 53,463.03/x - Step 3: Cross multiply
128,362.92x = 192,593.70 × 53,463.03 - Step 4: Simplify right side
128,362.92x = 10,296,642,760.91 - Step 5: Solve for x
x = 10,296,642,760.91/128,362.92 - Step 6: Final answer
x = 80,215.09
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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.