Finding the Fourth Proportional to 121,256.95, 167,325.99 and 66,806.74
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Solution
The fourth proportional to 121,256.95, 167,325.99 and 66,806.74 is: 92,188.56
Step by Step Solution
- Step 1: Write the proportion equation
121,256.95 : 167,325.99 = 66,806.74 : x - Step 2: Convert to fraction form
121,256.95/167,325.99 = 66,806.74/x - Step 3: Cross multiply
121,256.95x = 167,325.99 × 66,806.74 - Step 4: Simplify right side
121,256.95x = 11,178,503,909.17 - Step 5: Solve for x
x = 11,178,503,909.17/121,256.95 - Step 6: Final answer
x = 92,188.56
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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.