Finding the Fourth Proportional to 113,764.99, 170,674.97 and 42,688.21
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Solution
The fourth proportional to 113,764.99, 170,674.97 and 42,688.21 is: 64,042.63
Step by Step Solution
- Step 1: Write the proportion equation
113,764.99 : 170,674.97 = 42,688.21 : x - Step 2: Convert to fraction form
113,764.99/170,674.97 = 42,688.21/x - Step 3: Cross multiply
113,764.99x = 170,674.97 × 42,688.21 - Step 4: Simplify right side
113,764.99x = 7,285,808,961.10 - Step 5: Solve for x
x = 7,285,808,961.10/113,764.99 - Step 6: Final answer
x = 64,042.63
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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.