Finding the Fourth Proportional to 129,672.36, 194,512.14 and 36,178.02
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Solution
The fourth proportional to 129,672.36, 194,512.14 and 36,178.02 is: 54,268.03
Step by Step Solution
- Step 1: Write the proportion equation
129,672.36 : 194,512.14 = 36,178.02 : x - Step 2: Convert to fraction form
129,672.36/194,512.14 = 36,178.02/x - Step 3: Cross multiply
129,672.36x = 194,512.14 × 36,178.02 - Step 4: Simplify right side
129,672.36x = 7,037,064,091.16 - Step 5: Solve for x
x = 7,037,064,091.16/129,672.36 - Step 6: Final answer
x = 54,268.03
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.