Finding the Fourth Proportional to 125,067.78, 172,593.18 and 68,478.75
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Solution
The fourth proportional to 125,067.78, 172,593.18 and 68,478.75 is: 94,500.48
Step by Step Solution
- Step 1: Write the proportion equation
125,067.78 : 172,593.18 = 68,478.75 : x - Step 2: Convert to fraction form
125,067.78/172,593.18 = 68,478.75/x - Step 3: Cross multiply
125,067.78x = 172,593.18 × 68,478.75 - Step 4: Simplify right side
125,067.78x = 11,818,965,224.93 - Step 5: Solve for x
x = 11,818,965,224.93/125,067.78 - Step 6: Final answer
x = 94,500.48
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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.