Finding the Fourth Proportional to 125,268.05, 172,876.98 and 74,310.95
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Solution
The fourth proportional to 125,268.05, 172,876.98 and 74,310.95 is: 102,553.31
Step by Step Solution
- Step 1: Write the proportion equation
125,268.05 : 172,876.98 = 74,310.95 : x - Step 2: Convert to fraction form
125,268.05/172,876.98 = 74,310.95/x - Step 3: Cross multiply
125,268.05x = 172,876.98 × 74,310.95 - Step 4: Simplify right side
125,268.05x = 12,846,653,327.79 - Step 5: Solve for x
x = 12,846,653,327.79/125,268.05 - Step 6: Final answer
x = 102,553.31
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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.