Finding the Fourth Proportional to 146,117.28, 201,641.68 and 79,049.28
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Solution
The fourth proportional to 146,117.28, 201,641.68 and 79,049.28 is: 109,087.92
Step by Step Solution
- Step 1: Write the proportion equation
146,117.28 : 201,641.68 = 79,049.28 : x - Step 2: Convert to fraction form
146,117.28/201,641.68 = 79,049.28/x - Step 3: Cross multiply
146,117.28x = 201,641.68 × 79,049.28 - Step 4: Simplify right side
146,117.28x = 15,939,629,621.99 - Step 5: Solve for x
x = 15,939,629,621.99/146,117.28 - Step 6: Final answer
x = 109,087.92
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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.