Finding the Fourth Proportional to 125,642.97, 173,382.54 and 71,932.98
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Solution
The fourth proportional to 125,642.97, 173,382.54 and 71,932.98 is: 99,264.79
Step by Step Solution
- Step 1: Write the proportion equation
125,642.97 : 173,382.54 = 71,932.98 : x - Step 2: Convert to fraction form
125,642.97/173,382.54 = 71,932.98/x - Step 3: Cross multiply
125,642.97x = 173,382.54 × 71,932.98 - Step 4: Simplify right side
125,642.97x = 12,471,922,782.17 - Step 5: Solve for x
x = 12,471,922,782.17/125,642.97 - Step 6: Final answer
x = 99,264.79
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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.