Finding the Fourth Proportional to 125,375.54, 172,972.84 and 82,378.19
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Solution
The fourth proportional to 125,375.54, 172,972.84 and 82,378.19 is: 113,652.07
Step by Step Solution
- Step 1: Write the proportion equation
125,375.54 : 172,972.84 = 82,378.19 : x - Step 2: Convert to fraction form
125,375.54/172,972.84 = 82,378.19/x - Step 3: Cross multiply
125,375.54x = 172,972.84 × 82,378.19 - Step 4: Simplify right side
125,375.54x = 14,249,189,478.36 - Step 5: Solve for x
x = 14,249,189,478.36/125,375.54 - Step 6: Final answer
x = 113,652.07
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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.