Finding the Fourth Proportional to 125,297.46, 172,909.35 and 68,707.62
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Solution
The fourth proportional to 125,297.46, 172,909.35 and 68,707.62 is: 94,815.89
Step by Step Solution
- Step 1: Write the proportion equation
125,297.46 : 172,909.35 = 68,707.62 : x - Step 2: Convert to fraction form
125,297.46/172,909.35 = 68,707.62/x - Step 3: Cross multiply
125,297.46x = 172,909.35 × 68,707.62 - Step 4: Simplify right side
125,297.46x = 11,880,189,914.25 - Step 5: Solve for x
x = 11,880,189,914.25/125,297.46 - Step 6: Final answer
x = 94,815.89
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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.