Finding the Fourth Proportional to 129,731.08, 194,620.14 and 58,687.18
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Solution
The fourth proportional to 129,731.08, 194,620.14 and 58,687.18 is: 88,041.41
Step by Step Solution
- Step 1: Write the proportion equation
129,731.08 : 194,620.14 = 58,687.18 : x - Step 2: Convert to fraction form
129,731.08/194,620.14 = 58,687.18/x - Step 3: Cross multiply
129,731.08x = 194,620.14 × 58,687.18 - Step 4: Simplify right side
129,731.08x = 11,421,707,187.81 - Step 5: Solve for x
x = 11,421,707,187.81/129,731.08 - Step 6: Final answer
x = 88,041.41
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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.