Finding the Fourth Proportional to 131,238.46, 196,888.98 and 42,491.99
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Solution
The fourth proportional to 131,238.46, 196,888.98 and 42,491.99 is: 63,748.11
Step by Step Solution
- Step 1: Write the proportion equation
131,238.46 : 196,888.98 = 42,491.99 : x - Step 2: Convert to fraction form
131,238.46/196,888.98 = 42,491.99/x - Step 3: Cross multiply
131,238.46x = 196,888.98 × 42,491.99 - Step 4: Simplify right side
131,238.46x = 8,366,204,356.81 - Step 5: Solve for x
x = 8,366,204,356.81/131,238.46 - Step 6: Final answer
x = 63,748.11
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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.