Finding the Fourth Proportional to 125,414.25, 173,060.23 and 74,418.19
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Solution
The fourth proportional to 125,414.25, 173,060.23 and 74,418.19 is: 102,690.32
Step by Step Solution
- Step 1: Write the proportion equation
125,414.25 : 173,060.23 = 74,418.19 : x - Step 2: Convert to fraction form
125,414.25/173,060.23 = 74,418.19/x - Step 3: Cross multiply
125,414.25x = 173,060.23 × 74,418.19 - Step 4: Simplify right side
125,414.25x = 12,878,829,077.58 - Step 5: Solve for x
x = 12,878,829,077.58/125,414.25 - Step 6: Final answer
x = 102,690.32
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1.5x scale
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.