Finding the Fourth Proportional to 128,269.80, 192,404.70 and 114,491.70
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Solution
The fourth proportional to 128,269.80, 192,404.70 and 114,491.70 is: 171,737.55
Step by Step Solution
- Step 1: Write the proportion equation
128,269.80 : 192,404.70 = 114,491.70 : x - Step 2: Convert to fraction form
128,269.80/192,404.70 = 114,491.70/x - Step 3: Cross multiply
128,269.80x = 192,404.70 × 114,491.70 - Step 4: Simplify right side
128,269.80x = 22,028,741,190.99 - Step 5: Solve for x
x = 22,028,741,190.99/128,269.80 - Step 6: Final answer
x = 171,737.55
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1.5x scale
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.