Finding the Fourth Proportional to 125,416.25, 173,062.99 and 74,420.19
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Solution
The fourth proportional to 125,416.25, 173,062.99 and 74,420.19 is: 102,693.08
Step by Step Solution
- Step 1: Write the proportion equation
125,416.25 : 173,062.99 = 74,420.19 : x - Step 2: Convert to fraction form
125,416.25/173,062.99 = 74,420.19/x - Step 3: Cross multiply
125,416.25x = 173,062.99 × 74,420.19 - Step 4: Simplify right side
125,416.25x = 12,879,380,597.77 - Step 5: Solve for x
x = 12,879,380,597.77/125,416.25 - Step 6: Final answer
x = 102,693.08
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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.