Finding the Fourth Proportional to 131,371.24, 181,227.36 and 77,630.26
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Solution
The fourth proportional to 131,371.24, 181,227.36 and 77,630.26 is: 107,091.38
Step by Step Solution
- Step 1: Write the proportion equation
131,371.24 : 181,227.36 = 77,630.26 : x - Step 2: Convert to fraction form
131,371.24/181,227.36 = 77,630.26/x - Step 3: Cross multiply
131,371.24x = 181,227.36 × 77,630.26 - Step 4: Simplify right side
131,371.24x = 14,068,727,075.91 - Step 5: Solve for x
x = 14,068,727,075.91/131,371.24 - Step 6: Final answer
x = 107,091.38
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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.