Finding the Fourth Proportional to 139,029.75, 206,756.10 and 134,601.03
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Solution
The fourth proportional to 139,029.75, 206,756.10 and 134,601.03 is: 200,169.99
Step by Step Solution
- Step 1: Write the proportion equation
139,029.75 : 206,756.10 = 134,601.03 : x - Step 2: Convert to fraction form
139,029.75/206,756.10 = 134,601.03/x - Step 3: Cross multiply
139,029.75x = 206,756.10 × 134,601.03 - Step 4: Simplify right side
139,029.75x = 27,829,584,018.78 - Step 5: Solve for x
x = 27,829,584,018.78/139,029.75 - Step 6: Final answer
x = 200,169.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.