Finding the Fourth Proportional to 122,861.96, 169,558.08 and 69,152.12
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Solution
The fourth proportional to 122,861.96, 169,558.08 and 69,152.12 is: 95,434.75
Step by Step Solution
- Step 1: Write the proportion equation
122,861.96 : 169,558.08 = 69,152.12 : x - Step 2: Convert to fraction form
122,861.96/169,558.08 = 69,152.12/x - Step 3: Cross multiply
122,861.96x = 169,558.08 × 69,152.12 - Step 4: Simplify right side
122,861.96x = 11,725,300,695.13 - Step 5: Solve for x
x = 11,725,300,695.13/122,861.96 - Step 6: Final answer
x = 95,434.75
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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.