Finding the Fourth Proportional to 122,868.24, 169,467.48 and 84,640.08
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Solution
The fourth proportional to 122,868.24, 169,467.48 and 84,640.08 is: 116,740.84
Step by Step Solution
- Step 1: Write the proportion equation
122,868.24 : 169,467.48 = 84,640.08 : x - Step 2: Convert to fraction form
122,868.24/169,467.48 = 84,640.08/x - Step 3: Cross multiply
122,868.24x = 169,467.48 × 84,640.08 - Step 4: Simplify right side
122,868.24x = 14,343,741,064.60 - Step 5: Solve for x
x = 14,343,741,064.60/122,868.24 - Step 6: Final answer
x = 116,740.84
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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.