Finding the Fourth Proportional to 125,205.26, 172,706.50 and 102,268.41
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Solution
The fourth proportional to 125,205.26, 172,706.50 and 102,268.41 is: 141,067.70
Step by Step Solution
- Step 1: Write the proportion equation
125,205.26 : 172,706.50 = 102,268.41 : x - Step 2: Convert to fraction form
125,205.26/172,706.50 = 102,268.41/x - Step 3: Cross multiply
125,205.26x = 172,706.50 × 102,268.41 - Step 4: Simplify right side
125,205.26x = 17,662,417,776.79 - Step 5: Solve for x
x = 17,662,417,776.79/125,205.26 - Step 6: Final answer
x = 141,067.70
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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.