Finding the Fourth Proportional to 131,990.22, 182,145.93 and 71,560.68
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Solution
The fourth proportional to 131,990.22, 182,145.93 and 71,560.68 is: 98,753.43
Step by Step Solution
- Step 1: Write the proportion equation
131,990.22 : 182,145.93 = 71,560.68 : x - Step 2: Convert to fraction form
131,990.22/182,145.93 = 71,560.68/x - Step 3: Cross multiply
131,990.22x = 182,145.93 × 71,560.68 - Step 4: Simplify right side
131,990.22x = 13,034,486,610.03 - Step 5: Solve for x
x = 13,034,486,610.03/131,990.22 - Step 6: Final answer
x = 98,753.43
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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.