Finding the Fourth Proportional to 112,713.97, 155,518.58 and 66,750.40
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Solution
The fourth proportional to 112,713.97, 155,518.58 and 66,750.40 is: 92,099.74
Step by Step Solution
- Step 1: Write the proportion equation
112,713.97 : 155,518.58 = 66,750.40 : x - Step 2: Convert to fraction form
112,713.97/155,518.58 = 66,750.40/x - Step 3: Cross multiply
112,713.97x = 155,518.58 × 66,750.40 - Step 4: Simplify right side
112,713.97x = 10,380,926,311.09 - Step 5: Solve for x
x = 10,380,926,311.09/112,713.97 - Step 6: Final answer
x = 92,099.74
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1.5x scale
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.