Finding the Fourth Proportional to 106,519.88, 147,050.70 and 66,246.62
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Solution
The fourth proportional to 106,519.88, 147,050.70 and 66,246.62 is: 91,453.46
Step by Step Solution
- Step 1: Write the proportion equation
106,519.88 : 147,050.70 = 66,246.62 : x - Step 2: Convert to fraction form
106,519.88/147,050.70 = 66,246.62/x - Step 3: Cross multiply
106,519.88x = 147,050.70 × 66,246.62 - Step 4: Simplify right side
106,519.88x = 9,741,611,512.40 - Step 5: Solve for x
x = 9,741,611,512.40/106,519.88 - Step 6: Final answer
x = 91,453.46
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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.