Finding the Fourth Proportional to 129,525.70, 194,106.30 and 102,917.20
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Solution
The fourth proportional to 129,525.70, 194,106.30 and 102,917.20 is: 154,230.99
Step by Step Solution
- Step 1: Write the proportion equation
129,525.70 : 194,106.30 = 102,917.20 : x - Step 2: Convert to fraction form
129,525.70/194,106.30 = 102,917.20/x - Step 3: Cross multiply
129,525.70x = 194,106.30 × 102,917.20 - Step 4: Simplify right side
129,525.70x = 19,976,876,898.36 - Step 5: Solve for x
x = 19,976,876,898.36/129,525.70 - Step 6: Final answer
x = 154,230.99
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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.