Finding the Fourth Proportional to 125,102.21, 172,640.99 and 67,741.52
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Solution
The fourth proportional to 125,102.21, 172,640.99 and 67,741.52 is: 93,483.26
Step by Step Solution
- Step 1: Write the proportion equation
125,102.21 : 172,640.99 = 67,741.52 : x - Step 2: Convert to fraction form
125,102.21/172,640.99 = 67,741.52/x - Step 3: Cross multiply
125,102.21x = 172,640.99 × 67,741.52 - Step 4: Simplify right side
125,102.21x = 11,694,962,383.05 - Step 5: Solve for x
x = 11,694,962,383.05/125,102.21 - Step 6: Final answer
x = 93,483.26
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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.