Finding the Fourth Proportional to 129,841.30, 194,652.60 and 67,511.80
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Solution
The fourth proportional to 129,841.30, 194,652.60 and 67,511.80 is: 101,210.84
Step by Step Solution
- Step 1: Write the proportion equation
129,841.30 : 194,652.60 = 67,511.80 : x - Step 2: Convert to fraction form
129,841.30/194,652.60 = 67,511.80/x - Step 3: Cross multiply
129,841.30x = 194,652.60 × 67,511.80 - Step 4: Simplify right side
129,841.30x = 13,141,347,400.68 - Step 5: Solve for x
x = 13,141,347,400.68/129,841.30 - Step 6: Final answer
x = 101,210.84
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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.