Finding the Fourth Proportional to 125,551.09, 188,326.95 and 30,781.70
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Solution
The fourth proportional to 125,551.09, 188,326.95 and 30,781.70 is: 46,172.63
Step by Step Solution
- Step 1: Write the proportion equation
125,551.09 : 188,326.95 = 30,781.70 : x - Step 2: Convert to fraction form
125,551.09/188,326.95 = 30,781.70/x - Step 3: Cross multiply
125,551.09x = 188,326.95 × 30,781.70 - Step 4: Simplify right side
125,551.09x = 5,797,023,676.82 - Step 5: Solve for x
x = 5,797,023,676.82/125,551.09 - Step 6: Final answer
x = 46,172.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.