Finding the Fourth Proportional to 136,542.70, 204,814.05 and 117,515.80
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Solution
The fourth proportional to 136,542.70, 204,814.05 and 117,515.80 is: 176,273.70
Step by Step Solution
- Step 1: Write the proportion equation
136,542.70 : 204,814.05 = 117,515.80 : x - Step 2: Convert to fraction form
136,542.70/204,814.05 = 117,515.80/x - Step 3: Cross multiply
136,542.70x = 204,814.05 × 117,515.80 - Step 4: Simplify right side
136,542.70x = 24,068,886,936.99 - Step 5: Solve for x
x = 24,068,886,936.99/136,542.70 - Step 6: Final answer
x = 176,273.70
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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.