Finding the Fourth Proportional to 125,119.36, 172,664.76 and 68,531.68
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Solution
The fourth proportional to 125,119.36, 172,664.76 and 68,531.68 is: 94,573.74
Step by Step Solution
- Step 1: Write the proportion equation
125,119.36 : 172,664.76 = 68,531.68 : x - Step 2: Convert to fraction form
125,119.36/172,664.76 = 68,531.68/x - Step 3: Cross multiply
125,119.36x = 172,664.76 × 68,531.68 - Step 4: Simplify right side
125,119.36x = 11,833,006,079.60 - Step 5: Solve for x
x = 11,833,006,079.60/125,119.36 - Step 6: Final answer
x = 94,573.74
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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.