Finding the Fourth Proportional to 119,121.05, 178,641.90 and 48,025.32
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Solution
The fourth proportional to 119,121.05, 178,641.90 and 48,025.32 is: 72,021.99
Step by Step Solution
- Step 1: Write the proportion equation
119,121.05 : 178,641.90 = 48,025.32 : x - Step 2: Convert to fraction form
119,121.05/178,641.90 = 48,025.32/x - Step 3: Cross multiply
119,121.05x = 178,641.90 × 48,025.32 - Step 4: Simplify right side
119,121.05x = 8,579,334,412.91 - Step 5: Solve for x
x = 8,579,334,412.91/119,121.05 - Step 6: Final answer
x = 72,021.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.