Finding the Fourth Proportional to 147,778.70, 203,939.49 and 80,710.70
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Solution
The fourth proportional to 147,778.70, 203,939.49 and 80,710.70 is: 111,383.43
Step by Step Solution
- Step 1: Write the proportion equation
147,778.70 : 203,939.49 = 80,710.70 : x - Step 2: Convert to fraction form
147,778.70/203,939.49 = 80,710.70/x - Step 3: Cross multiply
147,778.70x = 203,939.49 × 80,710.70 - Step 4: Simplify right side
147,778.70x = 16,460,098,995.54 - Step 5: Solve for x
x = 16,460,098,995.54/147,778.70 - Step 6: Final answer
x = 111,383.43
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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.