Finding the Fourth Proportional to 122,925.10, 169,639.83 and 69,212.08
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Solution
The fourth proportional to 122,925.10, 169,639.83 and 69,212.08 is: 95,514.47
Step by Step Solution
- Step 1: Write the proportion equation
122,925.10 : 169,639.83 = 69,212.08 : x - Step 2: Convert to fraction form
122,925.10/169,639.83 = 69,212.08/x - Step 3: Cross multiply
122,925.10x = 169,639.83 × 69,212.08 - Step 4: Simplify right side
122,925.10x = 11,741,125,485.15 - Step 5: Solve for x
x = 11,741,125,485.15/122,925.10 - Step 6: Final answer
x = 95,514.47
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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.