Finding the Fourth Proportional to 121,850.08, 168,152.16 and 68,135.20
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Solution
The fourth proportional to 121,850.08, 168,152.16 and 68,135.20 is: 94,026.04
Step by Step Solution
- Step 1: Write the proportion equation
121,850.08 : 168,152.16 = 68,135.20 : x - Step 2: Convert to fraction form
121,850.08/168,152.16 = 68,135.20/x - Step 3: Cross multiply
121,850.08x = 168,152.16 × 68,135.20 - Step 4: Simplify right side
121,850.08x = 11,457,081,052.03 - Step 5: Solve for x
x = 11,457,081,052.03/121,850.08 - Step 6: Final answer
x = 94,026.04
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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.