Finding the Fourth Proportional to 131,555.52, 197,288.57 and 42,786.99
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Solution
The fourth proportional to 131,555.52, 197,288.57 and 42,786.99 is: 64,165.94
Step by Step Solution
- Step 1: Write the proportion equation
131,555.52 : 197,288.57 = 42,786.99 : x - Step 2: Convert to fraction form
131,555.52/197,288.57 = 42,786.99/x - Step 3: Cross multiply
131,555.52x = 197,288.57 × 42,786.99 - Step 4: Simplify right side
131,555.52x = 8,441,384,178.67 - Step 5: Solve for x
x = 8,441,384,178.67/131,555.52 - Step 6: Final answer
x = 64,165.94
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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.