Finding the Fourth Proportional to 147,571.26, 203,647.39 and 83,909.05
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Solution
The fourth proportional to 147,571.26, 203,647.39 and 83,909.05 is: 115,793.95
Step by Step Solution
- Step 1: Write the proportion equation
147,571.26 : 203,647.39 = 83,909.05 : x - Step 2: Convert to fraction form
147,571.26/203,647.39 = 83,909.05/x - Step 3: Cross multiply
147,571.26x = 203,647.39 × 83,909.05 - Step 4: Simplify right side
147,571.26x = 17,087,859,389.33 - Step 5: Solve for x
x = 17,087,859,389.33/147,571.26 - Step 6: Final answer
x = 115,793.95
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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.