Finding the Fourth Proportional to 125,043.75, 172,560.51 and 68,455.26
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Solution
The fourth proportional to 125,043.75, 172,560.51 and 68,455.26 is: 94,468.33
Step by Step Solution
- Step 1: Write the proportion equation
125,043.75 : 172,560.51 = 68,455.26 : x - Step 2: Convert to fraction form
125,043.75/172,560.51 = 68,455.26/x - Step 3: Cross multiply
125,043.75x = 172,560.51 × 68,455.26 - Step 4: Simplify right side
125,043.75x = 11,812,674,577.78 - Step 5: Solve for x
x = 11,812,674,577.78/125,043.75 - Step 6: Final answer
x = 94,468.33
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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.