Finding the Fourth Proportional to 121,518.96, 180,895.98 and 115,793.52
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Solution
The fourth proportional to 121,518.96, 180,895.98 and 115,793.52 is: 172,372.96
Step by Step Solution
- Step 1: Write the proportion equation
121,518.96 : 180,895.98 = 115,793.52 : x - Step 2: Convert to fraction form
121,518.96/180,895.98 = 115,793.52/x - Step 3: Cross multiply
121,518.96x = 180,895.98 × 115,793.52 - Step 4: Simplify right side
121,518.96x = 20,946,582,278.05 - Step 5: Solve for x
x = 20,946,582,278.05/121,518.96 - Step 6: Final answer
x = 172,372.96
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.