Finding the Fourth Proportional to 125,832.58, 173,656.44 and 72,121.05
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Solution
The fourth proportional to 125,832.58, 173,656.44 and 72,121.05 is: 99,531.33
Step by Step Solution
- Step 1: Write the proportion equation
125,832.58 : 173,656.44 = 72,121.05 : x - Step 2: Convert to fraction form
125,832.58/173,656.44 = 72,121.05/x - Step 3: Cross multiply
125,832.58x = 173,656.44 × 72,121.05 - Step 4: Simplify right side
125,832.58x = 12,524,283,907.32 - Step 5: Solve for x
x = 12,524,283,907.32/125,832.58 - Step 6: Final answer
x = 99,531.33
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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.