Finding the Fourth Proportional to 125,581.36, 173,299.27 and 71,862.95
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Solution
The fourth proportional to 125,581.36, 173,299.27 and 71,862.95 is: 99,169.15
Step by Step Solution
- Step 1: Write the proportion equation
125,581.36 : 173,299.27 = 71,862.95 : x - Step 2: Convert to fraction form
125,581.36/173,299.27 = 71,862.95/x - Step 3: Cross multiply
125,581.36x = 173,299.27 × 71,862.95 - Step 4: Simplify right side
125,581.36x = 12,453,796,775.05 - Step 5: Solve for x
x = 12,453,796,775.05/125,581.36 - Step 6: Final answer
x = 99,169.15
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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.