Finding the Fourth Proportional to 168,493.71, 252,739.85 and 68,631.63
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Solution
The fourth proportional to 168,493.71, 252,739.85 and 68,631.63 is: 102,947.15
Step by Step Solution
- Step 1: Write the proportion equation
168,493.71 : 252,739.85 = 68,631.63 : x - Step 2: Convert to fraction form
168,493.71/252,739.85 = 68,631.63/x - Step 3: Cross multiply
168,493.71x = 252,739.85 × 68,631.63 - Step 4: Simplify right side
168,493.71x = 17,345,947,528.30 - Step 5: Solve for x
x = 17,345,947,528.30/168,493.71 - Step 6: Final answer
x = 102,947.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.