Finding the Fourth Proportional to 121,244.64, 167,322.80 and 67,529.68
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Solution
The fourth proportional to 121,244.64, 167,322.80 and 67,529.68 is: 93,193.85
Step by Step Solution
- Step 1: Write the proportion equation
121,244.64 : 167,322.80 = 67,529.68 : x - Step 2: Convert to fraction form
121,244.64/167,322.80 = 67,529.68/x - Step 3: Cross multiply
121,244.64x = 167,322.80 × 67,529.68 - Step 4: Simplify right side
121,244.64x = 11,299,255,140.70 - Step 5: Solve for x
x = 11,299,255,140.70/121,244.64 - Step 6: Final answer
x = 93,193.85
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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.