Finding the Fourth Proportional to 129,268.66, 193,903.05 and 40,529.08
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Solution
The fourth proportional to 129,268.66, 193,903.05 and 40,529.08 is: 60,793.64
Step by Step Solution
- Step 1: Write the proportion equation
129,268.66 : 193,903.05 = 40,529.08 : x - Step 2: Convert to fraction form
129,268.66/193,903.05 = 40,529.08/x - Step 3: Cross multiply
129,268.66x = 193,903.05 × 40,529.08 - Step 4: Simplify right side
129,268.66x = 7,858,712,023.05 - Step 5: Solve for x
x = 7,858,712,023.05/129,268.66 - Step 6: Final answer
x = 60,793.64
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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.