Finding the Fourth Proportional to 129,617.10, 194,425.65 and 122,235.98
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Solution
The fourth proportional to 129,617.10, 194,425.65 and 122,235.98 is: 183,353.96
Step by Step Solution
- Step 1: Write the proportion equation
129,617.10 : 194,425.65 = 122,235.98 : x - Step 2: Convert to fraction form
129,617.10/194,425.65 = 122,235.98/x - Step 3: Cross multiply
129,617.10x = 194,425.65 × 122,235.98 - Step 4: Simplify right side
129,617.10x = 23,765,808,892.76 - Step 5: Solve for x
x = 23,765,808,892.76/129,617.10 - Step 6: Final answer
x = 183,353.96
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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.