Finding the Fourth Proportional to 108,081.12, 162,121.68 and 29,203.68
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Solution
The fourth proportional to 108,081.12, 162,121.68 and 29,203.68 is: 43,805.52
Step by Step Solution
- Step 1: Write the proportion equation
108,081.12 : 162,121.68 = 29,203.68 : x - Step 2: Convert to fraction form
108,081.12/162,121.68 = 29,203.68/x - Step 3: Cross multiply
108,081.12x = 162,121.68 × 29,203.68 - Step 4: Simplify right side
108,081.12x = 4,734,549,663.78 - Step 5: Solve for x
x = 4,734,549,663.78/108,081.12 - Step 6: Final answer
x = 43,805.52
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1.5x scale
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.