Finding the Fourth Proportional to 131,628.99, 197,055.97 and 81,548.06
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Solution
The fourth proportional to 131,628.99, 197,055.97 and 81,548.06 is: 122,082.01
Step by Step Solution
- Step 1: Write the proportion equation
131,628.99 : 197,055.97 = 81,548.06 : x - Step 2: Convert to fraction form
131,628.99/197,055.97 = 81,548.06/x - Step 3: Cross multiply
131,628.99x = 197,055.97 × 81,548.06 - Step 4: Simplify right side
131,628.99x = 16,069,530,671.90 - Step 5: Solve for x
x = 16,069,530,671.90/131,628.99 - Step 6: Final answer
x = 122,082.01
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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.