Finding the Fourth Proportional to 129,709.79, 194,550.09 and 34,946.99
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Solution
The fourth proportional to 129,709.79, 194,550.09 and 34,946.99 is: 52,416.55
Step by Step Solution
- Step 1: Write the proportion equation
129,709.79 : 194,550.09 = 34,946.99 : x - Step 2: Convert to fraction form
129,709.79/194,550.09 = 34,946.99/x - Step 3: Cross multiply
129,709.79x = 194,550.09 × 34,946.99 - Step 4: Simplify right side
129,709.79x = 6,798,940,049.73 - Step 5: Solve for x
x = 6,798,940,049.73/129,709.79 - Step 6: Final answer
x = 52,416.55
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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.