Finding the Fourth Proportional to 141,234.48, 194,856.12 and 79,972.31
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Solution
The fourth proportional to 141,234.48, 194,856.12 and 79,972.31 is: 110,334.92
Step by Step Solution
- Step 1: Write the proportion equation
141,234.48 : 194,856.12 = 79,972.31 : x - Step 2: Convert to fraction form
141,234.48/194,856.12 = 79,972.31/x - Step 3: Cross multiply
141,234.48x = 194,856.12 × 79,972.31 - Step 4: Simplify right side
141,234.48x = 15,583,094,521.18 - Step 5: Solve for x
x = 15,583,094,521.18/141,234.48 - Step 6: Final answer
x = 110,334.92
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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.