Finding the Fourth Proportional to 154,252.74, 231,115.05 and 84,181.26
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Solution
The fourth proportional to 154,252.74, 231,115.05 and 84,181.26 is: 126,127.78
Step by Step Solution
- Step 1: Write the proportion equation
154,252.74 : 231,115.05 = 84,181.26 : x - Step 2: Convert to fraction form
154,252.74/231,115.05 = 84,181.26/x - Step 3: Cross multiply
154,252.74x = 231,115.05 × 84,181.26 - Step 4: Simplify right side
154,252.74x = 19,455,556,113.96 - Step 5: Solve for x
x = 19,455,556,113.96/154,252.74 - Step 6: Final answer
x = 126,127.78
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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.