Finding the Fourth Proportional to 149,694.14, 206,572.76 and 89,233.62
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Solution
The fourth proportional to 149,694.14, 206,572.76 and 89,233.62 is: 123,139.32
Step by Step Solution
- Step 1: Write the proportion equation
149,694.14 : 206,572.76 = 89,233.62 : x - Step 2: Convert to fraction form
149,694.14/206,572.76 = 89,233.62/x - Step 3: Cross multiply
149,694.14x = 206,572.76 × 89,233.62 - Step 4: Simplify right side
149,694.14x = 18,433,235,168.19 - Step 5: Solve for x
x = 18,433,235,168.19/149,694.14 - Step 6: Final answer
x = 123,139.32
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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.