Finding the Fourth Proportional to 167,143.26, 230,657.74 and 91,691.76
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Solution
The fourth proportional to 167,143.26, 230,657.74 and 91,691.76 is: 126,534.65
Step by Step Solution
- Step 1: Write the proportion equation
167,143.26 : 230,657.74 = 91,691.76 : x - Step 2: Convert to fraction form
167,143.26/230,657.74 = 91,691.76/x - Step 3: Cross multiply
167,143.26x = 230,657.74 × 91,691.76 - Step 4: Simplify right side
167,143.26x = 21,149,414,138.22 - Step 5: Solve for x
x = 21,149,414,138.22/167,143.26 - Step 6: Final answer
x = 126,534.65
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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.