Finding the Fourth Proportional to 138,269.62, 207,405.08 and 48,311.96
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Solution
The fourth proportional to 138,269.62, 207,405.08 and 48,311.96 is: 72,468.17
Step by Step Solution
- Step 1: Write the proportion equation
138,269.62 : 207,405.08 = 48,311.96 : x - Step 2: Convert to fraction form
138,269.62/207,405.08 = 48,311.96/x - Step 3: Cross multiply
138,269.62x = 207,405.08 × 48,311.96 - Step 4: Simplify right side
138,269.62x = 10,020,145,928.76 - Step 5: Solve for x
x = 10,020,145,928.76/138,269.62 - Step 6: Final answer
x = 72,468.17
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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.