Finding the Fourth Proportional to 131,177.49, 196,807.58 and 99,737.99
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Solution
The fourth proportional to 131,177.49, 196,807.58 and 99,737.99 is: 149,638.42
Step by Step Solution
- Step 1: Write the proportion equation
131,177.49 : 196,807.58 = 99,737.99 : x - Step 2: Convert to fraction form
131,177.49/196,807.58 = 99,737.99/x - Step 3: Cross multiply
131,177.49x = 196,807.58 × 99,737.99 - Step 4: Simplify right side
131,177.49x = 19,629,192,075.28 - Step 5: Solve for x
x = 19,629,192,075.28/131,177.49 - Step 6: Final answer
x = 149,638.42
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1.5x scale
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.