Finding the Fourth Proportional to 125,101.22, 172,651.99 and 71,394.31
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Solution
The fourth proportional to 125,101.22, 172,651.99 and 71,394.31 is: 98,531.17
Step by Step Solution
- Step 1: Write the proportion equation
125,101.22 : 172,651.99 = 71,394.31 : x - Step 2: Convert to fraction form
125,101.22/172,651.99 = 71,394.31/x - Step 3: Cross multiply
125,101.22x = 172,651.99 × 71,394.31 - Step 4: Simplify right side
125,101.22x = 12,326,369,696.18 - Step 5: Solve for x
x = 12,326,369,696.18/125,101.22 - Step 6: Final answer
x = 98,531.17
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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.