Finding the Fourth Proportional to 101,319.75, 151,979.63 and 27,447.75
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Solution
The fourth proportional to 101,319.75, 151,979.63 and 27,447.75 is: 41,171.63
Step by Step Solution
- Step 1: Write the proportion equation
101,319.75 : 151,979.63 = 27,447.75 : x - Step 2: Convert to fraction form
101,319.75/151,979.63 = 27,447.75/x - Step 3: Cross multiply
101,319.75x = 151,979.63 × 27,447.75 - Step 4: Simplify right side
101,319.75x = 4,171,498,752.09 - Step 5: Solve for x
x = 4,171,498,752.09/101,319.75 - Step 6: Final answer
x = 41,171.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.