Finding the Fourth Proportional to 131,703.20, 181,750.42 and 71,273.84
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Solution
The fourth proportional to 131,703.20, 181,750.42 and 71,273.84 is: 98,357.90
Step by Step Solution
- Step 1: Write the proportion equation
131,703.20 : 181,750.42 = 71,273.84 : x - Step 2: Convert to fraction form
131,703.20/181,750.42 = 71,273.84/x - Step 3: Cross multiply
131,703.20x = 181,750.42 × 71,273.84 - Step 4: Simplify right side
131,703.20x = 12,954,050,355.01 - Step 5: Solve for x
x = 12,954,050,355.01/131,703.20 - Step 6: Final answer
x = 98,357.90
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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.