Finding the Fourth Proportional to 122,192.06, 168,624.78 and 74,445.44
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Solution
The fourth proportional to 122,192.06, 168,624.78 and 74,445.44 is: 102,734.55
Step by Step Solution
- Step 1: Write the proportion equation
122,192.06 : 168,624.78 = 74,445.44 : x - Step 2: Convert to fraction form
122,192.06/168,624.78 = 74,445.44/x - Step 3: Cross multiply
122,192.06x = 168,624.78 × 74,445.44 - Step 4: Simplify right side
122,192.06x = 12,553,345,942.00 - Step 5: Solve for x
x = 12,553,345,942.00/122,192.06 - Step 6: Final answer
x = 102,734.55
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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.