Finding the Fourth Proportional to 99,971.31, 149,882.88 and 60,519.09
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Solution
The fourth proportional to 99,971.31, 149,882.88 and 60,519.09 is: 90,733.79
Step by Step Solution
- Step 1: Write the proportion equation
99,971.31 : 149,882.88 = 60,519.09 : x - Step 2: Convert to fraction form
99,971.31/149,882.88 = 60,519.09/x - Step 3: Cross multiply
99,971.31x = 149,882.88 × 60,519.09 - Step 4: Simplify right side
99,971.31x = 9,070,775,504.18 - Step 5: Solve for x
x = 9,070,775,504.18/99,971.31 - Step 6: Final answer
x = 90,733.79
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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.