Finding the Fourth Proportional to 143,937.56, 198,633.85 and 80,273.99
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Solution
The fourth proportional to 143,937.56, 198,633.85 and 80,273.99 is: 110,778.12
Step by Step Solution
- Step 1: Write the proportion equation
143,937.56 : 198,633.85 = 80,273.99 : x - Step 2: Convert to fraction form
143,937.56/198,633.85 = 80,273.99/x - Step 3: Cross multiply
143,937.56x = 198,633.85 × 80,273.99 - Step 4: Simplify right side
143,937.56x = 15,945,131,984.46 - Step 5: Solve for x
x = 15,945,131,984.46/143,937.56 - Step 6: Final answer
x = 110,778.12
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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.