Finding the Fourth Proportional to 125,782.81, 173,537.84 and 71,329.14
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Solution
The fourth proportional to 125,782.81, 173,537.84 and 71,329.14 is: 98,410.15
Step by Step Solution
- Step 1: Write the proportion equation
125,782.81 : 173,537.84 = 71,329.14 : x - Step 2: Convert to fraction form
125,782.81/173,537.84 = 71,329.14/x - Step 3: Cross multiply
125,782.81x = 173,537.84 × 71,329.14 - Step 4: Simplify right side
125,782.81x = 12,378,305,062.98 - Step 5: Solve for x
x = 12,378,305,062.98/125,782.81 - Step 6: Final answer
x = 98,410.15
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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.