Finding the Fourth Proportional to 139,364.24, 192,419.88 and 107,044.88
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Solution
The fourth proportional to 139,364.24, 192,419.88 and 107,044.88 is: 147,796.62
Step by Step Solution
- Step 1: Write the proportion equation
139,364.24 : 192,419.88 = 107,044.88 : x - Step 2: Convert to fraction form
139,364.24/192,419.88 = 107,044.88/x - Step 3: Cross multiply
139,364.24x = 192,419.88 × 107,044.88 - Step 4: Simplify right side
139,364.24x = 20,597,562,964.21 - Step 5: Solve for x
x = 20,597,562,964.21/139,364.24 - Step 6: Final answer
x = 147,796.62
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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.