Finding the Fourth Proportional to 125,814.44, 173,628.70 and 72,109.82
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Solution
The fourth proportional to 125,814.44, 173,628.70 and 72,109.82 is: 99,514.28
Step by Step Solution
- Step 1: Write the proportion equation
125,814.44 : 173,628.70 = 72,109.82 : x - Step 2: Convert to fraction form
125,814.44/173,628.70 = 72,109.82/x - Step 3: Cross multiply
125,814.44x = 173,628.70 × 72,109.82 - Step 4: Simplify right side
125,814.44x = 12,520,333,075.14 - Step 5: Solve for x
x = 12,520,333,075.14/125,814.44 - Step 6: Final answer
x = 99,514.28
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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.