Finding the Fourth Proportional to 129,399.80, 192,764.23 and 125,483.96
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Solution
The fourth proportional to 129,399.80, 192,764.23 and 125,483.96 is: 186,930.88
Step by Step Solution
- Step 1: Write the proportion equation
129,399.80 : 192,764.23 = 125,483.96 : x - Step 2: Convert to fraction form
129,399.80/192,764.23 = 125,483.96/x - Step 3: Cross multiply
129,399.80x = 192,764.23 × 125,483.96 - Step 4: Simplify right side
129,399.80x = 24,188,818,926.75 - Step 5: Solve for x
x = 24,188,818,926.75/129,399.80 - Step 6: Final answer
x = 186,930.88
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.