Finding the Fourth Proportional to 121,081.84, 167,106.60 and 69,403.76
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Solution
The fourth proportional to 121,081.84, 167,106.60 and 69,403.76 is: 95,785.02
Step by Step Solution
- Step 1: Write the proportion equation
121,081.84 : 167,106.60 = 69,403.76 : x - Step 2: Convert to fraction form
121,081.84/167,106.60 = 69,403.76/x - Step 3: Cross multiply
121,081.84x = 167,106.60 × 69,403.76 - Step 4: Simplify right side
121,081.84x = 11,597,826,360.82 - Step 5: Solve for x
x = 11,597,826,360.82/121,081.84 - Step 6: Final answer
x = 95,785.02
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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.