Finding the Fourth Proportional to 149,184.68, 205,874.76 and 82,116.68
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Solution
The fourth proportional to 149,184.68, 205,874.76 and 82,116.68 is: 113,320.96
Step by Step Solution
- Step 1: Write the proportion equation
149,184.68 : 205,874.76 = 82,116.68 : x - Step 2: Convert to fraction form
149,184.68/205,874.76 = 82,116.68/x - Step 3: Cross multiply
149,184.68x = 205,874.76 × 82,116.68 - Step 4: Simplify right side
149,184.68x = 16,905,751,787.00 - Step 5: Solve for x
x = 16,905,751,787.00/149,184.68 - Step 6: Final answer
x = 113,320.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.