Finding the Fourth Proportional to 112,441.92, 155,202.08 and 74,229.28
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Solution
The fourth proportional to 112,441.92, 155,202.08 and 74,229.28 is: 102,457.68
Step by Step Solution
- Step 1: Write the proportion equation
112,441.92 : 155,202.08 = 74,229.28 : x - Step 2: Convert to fraction form
112,441.92/155,202.08 = 74,229.28/x - Step 3: Cross multiply
112,441.92x = 155,202.08 × 74,229.28 - Step 4: Simplify right side
112,441.92x = 11,520,538,652.90 - Step 5: Solve for x
x = 11,520,538,652.90/112,441.92 - Step 6: Final answer
x = 102,457.68
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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.