Finding the Fourth Proportional to 125,421.63, 188,161.17 and 54,356.19
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Solution
The fourth proportional to 125,421.63, 188,161.17 and 54,356.19 is: 81,546.73
Step by Step Solution
- Step 1: Write the proportion equation
125,421.63 : 188,161.17 = 54,356.19 : x - Step 2: Convert to fraction form
125,421.63/188,161.17 = 54,356.19/x - Step 3: Cross multiply
125,421.63x = 188,161.17 × 54,356.19 - Step 4: Simplify right side
125,421.63x = 10,227,724,307.14 - Step 5: Solve for x
x = 10,227,724,307.14/125,421.63 - Step 6: Final answer
x = 81,546.73
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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.