Finding the Fourth Proportional to 147,471.63, 203,511.05 and 80,403.63
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Solution
The fourth proportional to 147,471.63, 203,511.05 and 80,403.63 is: 110,957.12
Step by Step Solution
- Step 1: Write the proportion equation
147,471.63 : 203,511.05 = 80,403.63 : x - Step 2: Convert to fraction form
147,471.63/203,511.05 = 80,403.63/x - Step 3: Cross multiply
147,471.63x = 203,511.05 × 80,403.63 - Step 4: Simplify right side
147,471.63x = 16,363,027,165.11 - Step 5: Solve for x
x = 16,363,027,165.11/147,471.63 - Step 6: Final answer
x = 110,957.12
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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.