Finding the Fourth Proportional to 140,031.44, 193,235.76 and 79,593.68
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Solution
The fourth proportional to 140,031.44, 193,235.76 and 79,593.68 is: 109,834.94
Step by Step Solution
- Step 1: Write the proportion equation
140,031.44 : 193,235.76 = 79,593.68 : x - Step 2: Convert to fraction form
140,031.44/193,235.76 = 79,593.68/x - Step 3: Cross multiply
140,031.44x = 193,235.76 × 79,593.68 - Step 4: Simplify right side
140,031.44x = 15,380,345,246.00 - Step 5: Solve for x
x = 15,380,345,246.00/140,031.44 - Step 6: Final answer
x = 109,834.94
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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.