Finding the Fourth Proportional to 141,135.44, 194,763.30 and 77,472.68
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Solution
The fourth proportional to 141,135.44, 194,763.30 and 77,472.68 is: 106,910.32
Step by Step Solution
- Step 1: Write the proportion equation
141,135.44 : 194,763.30 = 77,472.68 : x - Step 2: Convert to fraction form
141,135.44/194,763.30 = 77,472.68/x - Step 3: Cross multiply
141,135.44x = 194,763.30 × 77,472.68 - Step 4: Simplify right side
141,135.44x = 15,088,834,816.64 - Step 5: Solve for x
x = 15,088,834,816.64/141,135.44 - Step 6: Final answer
x = 106,910.32
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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.