Finding the Fourth Proportional to 115,528.99, 159,412.03 and 65,226.91
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Solution
The fourth proportional to 115,528.99, 159,412.03 and 65,226.91 is: 90,002.99
Step by Step Solution
- Step 1: Write the proportion equation
115,528.99 : 159,412.03 = 65,226.91 : x - Step 2: Convert to fraction form
115,528.99/159,412.03 = 65,226.91/x - Step 3: Cross multiply
115,528.99x = 159,412.03 × 65,226.91 - Step 4: Simplify right side
115,528.99x = 10,397,954,133.73 - Step 5: Solve for x
x = 10,397,954,133.73/115,528.99 - Step 6: Final answer
x = 90,002.99
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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.