Finding the Fourth Proportional to 124,916.05, 172,382.74 and 68,326.75
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Solution
The fourth proportional to 124,916.05, 172,382.74 and 68,326.75 is: 94,290.14
Step by Step Solution
- Step 1: Write the proportion equation
124,916.05 : 172,382.74 = 68,326.75 : x - Step 2: Convert to fraction form
124,916.05/172,382.74 = 68,326.75/x - Step 3: Cross multiply
124,916.05x = 172,382.74 × 68,326.75 - Step 4: Simplify right side
124,916.05x = 11,778,352,380.30 - Step 5: Solve for x
x = 11,778,352,380.30/124,916.05 - Step 6: Final answer
x = 94,290.14
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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.