Finding the Fourth Proportional to 125,330.94, 172,959.39 and 68,742.18
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Solution
The fourth proportional to 125,330.94, 172,959.39 and 68,742.18 is: 94,865.69
Step by Step Solution
- Step 1: Write the proportion equation
125,330.94 : 172,959.39 = 68,742.18 : x - Step 2: Convert to fraction form
125,330.94/172,959.39 = 68,742.18/x - Step 3: Cross multiply
125,330.94x = 172,959.39 × 68,742.18 - Step 4: Simplify right side
125,330.94x = 11,889,605,520.07 - Step 5: Solve for x
x = 11,889,605,520.07/125,330.94 - Step 6: Final answer
x = 94,865.69
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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.