Finding the Fourth Proportional to 135,473.20, 186,934.50 and 75,028.92
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Solution
The fourth proportional to 135,473.20, 186,934.50 and 75,028.92 is: 103,529.65
Step by Step Solution
- Step 1: Write the proportion equation
135,473.20 : 186,934.50 = 75,028.92 : x - Step 2: Convert to fraction form
135,473.20/186,934.50 = 75,028.92/x - Step 3: Cross multiply
135,473.20x = 186,934.50 × 75,028.92 - Step 4: Simplify right side
135,473.20x = 14,025,493,645.74 - Step 5: Solve for x
x = 14,025,493,645.74/135,473.20 - Step 6: Final answer
x = 103,529.65
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1.5x scale
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.