Finding the Fourth Proportional to 143,769.35, 198,402.49 and 83,375.80
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Solution
The fourth proportional to 143,769.35, 198,402.49 and 83,375.80 is: 115,059.06
Step by Step Solution
- Step 1: Write the proportion equation
143,769.35 : 198,402.49 = 83,375.80 : x - Step 2: Convert to fraction form
143,769.35/198,402.49 = 83,375.80/x - Step 3: Cross multiply
143,769.35x = 198,402.49 × 83,375.80 - Step 4: Simplify right side
143,769.35x = 16,541,965,621.30 - Step 5: Solve for x
x = 16,541,965,621.30/143,769.35 - Step 6: Final answer
x = 115,059.06
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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.