Finding the Fourth Proportional to 115,297.56, 171,800.20 and 102,720.96
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Solution
The fourth proportional to 115,297.56, 171,800.20 and 102,720.96 is: 153,060.32
Step by Step Solution
- Step 1: Write the proportion equation
115,297.56 : 171,800.20 = 102,720.96 : x - Step 2: Convert to fraction form
115,297.56/171,800.20 = 102,720.96/x - Step 3: Cross multiply
115,297.56x = 171,800.20 × 102,720.96 - Step 4: Simplify right side
115,297.56x = 17,647,481,472.19 - Step 5: Solve for x
x = 17,647,481,472.19/115,297.56 - Step 6: Final answer
x = 153,060.32
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.