Finding the Fourth Proportional to 125,310.87, 172,913.02 and 71,599.37
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Solution
The fourth proportional to 125,310.87, 172,913.02 and 71,599.37 is: 98,797.99
Step by Step Solution
- Step 1: Write the proportion equation
125,310.87 : 172,913.02 = 71,599.37 : x - Step 2: Convert to fraction form
125,310.87/172,913.02 = 71,599.37/x - Step 3: Cross multiply
125,310.87x = 172,913.02 × 71,599.37 - Step 4: Simplify right side
125,310.87x = 12,380,462,253.23 - Step 5: Solve for x
x = 12,380,462,253.23/125,310.87 - Step 6: Final answer
x = 98,797.99
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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.