Finding the Fourth Proportional to 141,873.12, 212,809.68 and 48,379.68
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Solution
The fourth proportional to 141,873.12, 212,809.68 and 48,379.68 is: 72,569.52
Step by Step Solution
- Step 1: Write the proportion equation
141,873.12 : 212,809.68 = 48,379.68 : x - Step 2: Convert to fraction form
141,873.12/212,809.68 = 48,379.68/x - Step 3: Cross multiply
141,873.12x = 212,809.68 × 48,379.68 - Step 4: Simplify right side
141,873.12x = 10,295,664,219.30 - Step 5: Solve for x
x = 10,295,664,219.30/141,873.12 - Step 6: Final answer
x = 72,569.52
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1.5x scale
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.