Finding the Fourth Proportional to 131,826.26, 181,952.80 and 75,270.44
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Solution
The fourth proportional to 131,826.26, 181,952.80 and 75,270.44 is: 103,891.80
Step by Step Solution
- Step 1: Write the proportion equation
131,826.26 : 181,952.80 = 75,270.44 : x - Step 2: Convert to fraction form
131,826.26/181,952.80 = 75,270.44/x - Step 3: Cross multiply
131,826.26x = 181,952.80 × 75,270.44 - Step 4: Simplify right side
131,826.26x = 13,695,667,315.23 - Step 5: Solve for x
x = 13,695,667,315.23/131,826.26 - Step 6: Final answer
x = 103,891.80
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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.