Finding the Fourth Proportional to 149,965.92, 206,943.12 and 86,293.44
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Solution
The fourth proportional to 149,965.92, 206,943.12 and 86,293.44 is: 119,079.28
Step by Step Solution
- Step 1: Write the proportion equation
149,965.92 : 206,943.12 = 86,293.44 : x - Step 2: Convert to fraction form
149,965.92/206,943.12 = 86,293.44/x - Step 3: Cross multiply
149,965.92x = 206,943.12 × 86,293.44 - Step 4: Simplify right side
149,965.92x = 17,857,833,709.13 - Step 5: Solve for x
x = 17,857,833,709.13/149,965.92 - Step 6: Final answer
x = 119,079.28
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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.