Finding the Fourth Proportional to 131,563.44, 181,554.84 and 71,947.44
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Solution
The fourth proportional to 131,563.44, 181,554.84 and 71,947.44 is: 99,285.99
Step by Step Solution
- Step 1: Write the proportion equation
131,563.44 : 181,554.84 = 71,947.44 : x - Step 2: Convert to fraction form
131,563.44/181,554.84 = 71,947.44/x - Step 3: Cross multiply
131,563.44x = 181,554.84 × 71,947.44 - Step 4: Simplify right side
131,563.44x = 13,062,405,957.61 - Step 5: Solve for x
x = 13,062,405,957.61/131,563.44 - Step 6: Final answer
x = 99,285.99
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1.5x scale
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.