Finding the Fourth Proportional to 115,554.44, 159,463.12 and 64,568.20
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Solution
The fourth proportional to 115,554.44, 159,463.12 and 64,568.20 is: 89,102.99
Step by Step Solution
- Step 1: Write the proportion equation
115,554.44 : 159,463.12 = 64,568.20 : x - Step 2: Convert to fraction form
115,554.44/159,463.12 = 64,568.20/x - Step 3: Cross multiply
115,554.44x = 159,463.12 × 64,568.20 - Step 4: Simplify right side
115,554.44x = 10,296,246,624.78 - Step 5: Solve for x
x = 10,296,246,624.78/115,554.44 - Step 6: Final answer
x = 89,102.99
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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.