Finding the Fourth Proportional to 125,632.96, 173,296.56 and 74,611.12
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Solution
The fourth proportional to 125,632.96, 173,296.56 and 74,611.12 is: 102,917.66
Step by Step Solution
- Step 1: Write the proportion equation
125,632.96 : 173,296.56 = 74,611.12 : x - Step 2: Convert to fraction form
125,632.96/173,296.56 = 74,611.12/x - Step 3: Cross multiply
125,632.96x = 173,296.56 × 74,611.12 - Step 4: Simplify right side
125,632.96x = 12,929,850,433.75 - Step 5: Solve for x
x = 12,929,850,433.75/125,632.96 - Step 6: Final answer
x = 102,917.66
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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.