Finding the Fourth Proportional to 121,110.80, 167,136.84 and 75,774.32
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Solution
The fourth proportional to 121,110.80, 167,136.84 and 75,774.32 is: 104,571.02
Step by Step Solution
- Step 1: Write the proportion equation
121,110.80 : 167,136.84 = 75,774.32 : x - Step 2: Convert to fraction form
121,110.80/167,136.84 = 75,774.32/x - Step 3: Cross multiply
121,110.80x = 167,136.84 × 75,774.32 - Step 4: Simplify right side
121,110.80x = 12,664,680,397.95 - Step 5: Solve for x
x = 12,664,680,397.95/121,110.80 - Step 6: Final answer
x = 104,571.02
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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.