Finding the Fourth Proportional to 144,000.18, 198,722.97 and 83,575.80
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Solution
The fourth proportional to 144,000.18, 198,722.97 and 83,575.80 is: 115,336.18
Step by Step Solution
- Step 1: Write the proportion equation
144,000.18 : 198,722.97 = 83,575.80 : x - Step 2: Convert to fraction form
144,000.18/198,722.97 = 83,575.80/x - Step 3: Cross multiply
144,000.18x = 198,722.97 × 83,575.80 - Step 4: Simplify right side
144,000.18x = 16,608,431,196.13 - Step 5: Solve for x
x = 16,608,431,196.13/144,000.18 - Step 6: Final answer
x = 115,336.18
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.