Finding the Fourth Proportional to 131,783.30, 181,861.04 and 71,353.99
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Solution
The fourth proportional to 131,783.30, 181,861.04 and 71,353.99 is: 98,468.55
Step by Step Solution
- Step 1: Write the proportion equation
131,783.30 : 181,861.04 = 71,353.99 : x - Step 2: Convert to fraction form
131,783.30/181,861.04 = 71,353.99/x - Step 3: Cross multiply
131,783.30x = 181,861.04 × 71,353.99 - Step 4: Simplify right side
131,783.30x = 12,976,510,553.28 - Step 5: Solve for x
x = 12,976,510,553.28/131,783.30 - Step 6: Final answer
x = 98,468.55
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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.