Finding the Fourth Proportional to 122,785.92, 169,442.88 and 69,070.92
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Solution
The fourth proportional to 122,785.92, 169,442.88 and 69,070.92 is: 95,316.92
Step by Step Solution
- Step 1: Write the proportion equation
122,785.92 : 169,442.88 = 69,070.92 : x - Step 2: Convert to fraction form
122,785.92/169,442.88 = 69,070.92/x - Step 3: Cross multiply
122,785.92x = 169,442.88 × 69,070.92 - Step 4: Simplify right side
122,785.92x = 11,703,575,609.05 - Step 5: Solve for x
x = 11,703,575,609.05/122,785.92 - Step 6: Final answer
x = 95,316.92
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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.