Finding the Fourth Proportional to 112,246.19, 154,860.66 and 71,982.15
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Solution
The fourth proportional to 112,246.19, 154,860.66 and 71,982.15 is: 99,310.31
Step by Step Solution
- Step 1: Write the proportion equation
112,246.19 : 154,860.66 = 71,982.15 : x - Step 2: Convert to fraction form
112,246.19/154,860.66 = 71,982.15/x - Step 3: Cross multiply
112,246.19x = 154,860.66 × 71,982.15 - Step 4: Simplify right side
112,246.19x = 11,147,203,257.22 - Step 5: Solve for x
x = 11,147,203,257.22/112,246.19 - Step 6: Final answer
x = 99,310.31
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1.5x scale
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.