Finding the Fourth Proportional to 140,673.99, 194,132.43 and 79,423.41
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Solution
The fourth proportional to 140,673.99, 194,132.43 and 79,423.41 is: 109,605.62
Step by Step Solution
- Step 1: Write the proportion equation
140,673.99 : 194,132.43 = 79,423.41 : x - Step 2: Convert to fraction form
140,673.99/194,132.43 = 79,423.41/x - Step 3: Cross multiply
140,673.99x = 194,132.43 × 79,423.41 - Step 4: Simplify right side
140,673.99x = 15,418,659,582.19 - Step 5: Solve for x
x = 15,418,659,582.19/140,673.99 - Step 6: Final answer
x = 109,605.62
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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.