Finding the Fourth Proportional to 134,868.60, 202,130.10 and 120,007.80
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Solution
The fourth proportional to 134,868.60, 202,130.10 and 120,007.80 is: 179,857.94
Step by Step Solution
- Step 1: Write the proportion equation
134,868.60 : 202,130.10 = 120,007.80 : x - Step 2: Convert to fraction form
134,868.60/202,130.10 = 120,007.80/x - Step 3: Cross multiply
134,868.60x = 202,130.10 × 120,007.80 - Step 4: Simplify right side
134,868.60x = 24,257,188,614.78 - Step 5: Solve for x
x = 24,257,188,614.78/134,868.60 - Step 6: Final answer
x = 179,857.94
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.