Finding the Fourth Proportional to 121,261.53, 167,334.26 and 66,811.91
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Solution
The fourth proportional to 121,261.53, 167,334.26 and 66,811.91 is: 92,196.76
Step by Step Solution
- Step 1: Write the proportion equation
121,261.53 : 167,334.26 = 66,811.91 : x - Step 2: Convert to fraction form
121,261.53/167,334.26 = 66,811.91/x - Step 3: Cross multiply
121,261.53x = 167,334.26 × 66,811.91 - Step 4: Simplify right side
121,261.53x = 11,179,920,348.31 - Step 5: Solve for x
x = 11,179,920,348.31/121,261.53 - Step 6: Final answer
x = 92,196.76
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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.