Finding the Fourth Proportional to 125,731.12, 173,504.12 and 69,139.12
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Solution
The fourth proportional to 125,731.12, 173,504.12 and 69,139.12 is: 95,409.33
Step by Step Solution
- Step 1: Write the proportion equation
125,731.12 : 173,504.12 = 69,139.12 : x - Step 2: Convert to fraction form
125,731.12/173,504.12 = 69,139.12/x - Step 3: Cross multiply
125,731.12x = 173,504.12 × 69,139.12 - Step 4: Simplify right side
125,731.12x = 11,995,922,173.17 - Step 5: Solve for x
x = 11,995,922,173.17/125,731.12 - Step 6: Final answer
x = 95,409.33
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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.