Finding the Fourth Proportional to 125,153.75, 172,710.75 and 67,791.99
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Solution
The fourth proportional to 125,153.75, 172,710.75 and 67,791.99 is: 93,552.17
Step by Step Solution
- Step 1: Write the proportion equation
125,153.75 : 172,710.75 = 67,791.99 : x - Step 2: Convert to fraction form
125,153.75/172,710.75 = 67,791.99/x - Step 3: Cross multiply
125,153.75x = 172,710.75 × 67,791.99 - Step 4: Simplify right side
125,153.75x = 11,708,405,097.93 - Step 5: Solve for x
x = 11,708,405,097.93/125,153.75 - Step 6: Final answer
x = 93,552.17
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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.