Finding the Fourth Proportional to 141,939.91, 195,870.47 and 81,467.99
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Solution
The fourth proportional to 141,939.91, 195,870.47 and 81,467.99 is: 112,422.03
Step by Step Solution
- Step 1: Write the proportion equation
141,939.91 : 195,870.47 = 81,467.99 : x - Step 2: Convert to fraction form
141,939.91/195,870.47 = 81,467.99/x - Step 3: Cross multiply
141,939.91x = 195,870.47 × 81,467.99 - Step 4: Simplify right side
141,939.91x = 15,957,173,491.26 - Step 5: Solve for x
x = 15,957,173,491.26/141,939.91 - Step 6: Final answer
x = 112,422.03
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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.