Finding the Fourth Proportional to 138,373.37, 207,612.35 and 54,193.70
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Solution
The fourth proportional to 138,373.37, 207,612.35 and 54,193.70 is: 81,311.02
Step by Step Solution
- Step 1: Write the proportion equation
138,373.37 : 207,612.35 = 54,193.70 : x - Step 2: Convert to fraction form
138,373.37/207,612.35 = 54,193.70/x - Step 3: Cross multiply
138,373.37x = 207,612.35 × 54,193.70 - Step 4: Simplify right side
138,373.37x = 11,251,280,103.16 - Step 5: Solve for x
x = 11,251,280,103.16/138,373.37 - Step 6: Final answer
x = 81,311.02
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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.