Finding the Fourth Proportional to 125,246.40, 172,906.56 and 85,174.08
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Solution
The fourth proportional to 125,246.40, 172,906.56 and 85,174.08 is: 117,585.47
Step by Step Solution
- Step 1: Write the proportion equation
125,246.40 : 172,906.56 = 85,174.08 : x - Step 2: Convert to fraction form
125,246.40/172,906.56 = 85,174.08/x - Step 3: Cross multiply
125,246.40x = 172,906.56 × 85,174.08 - Step 4: Simplify right side
125,246.40x = 14,727,157,173.96 - Step 5: Solve for x
x = 14,727,157,173.96/125,246.40 - Step 6: Final answer
x = 117,585.47
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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.