Finding the Fourth Proportional to 138,611.26, 207,744.63 and 63,651.88
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Solution
The fourth proportional to 138,611.26, 207,744.63 and 63,651.88 is: 95,398.72
Step by Step Solution
- Step 1: Write the proportion equation
138,611.26 : 207,744.63 = 63,651.88 : x - Step 2: Convert to fraction form
138,611.26/207,744.63 = 63,651.88/x - Step 3: Cross multiply
138,611.26x = 207,744.63 × 63,651.88 - Step 4: Simplify right side
138,611.26x = 13,223,336,259.40 - Step 5: Solve for x
x = 13,223,336,259.40/138,611.26 - Step 6: Final answer
x = 95,398.72
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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.