Finding the Fourth Proportional to 150,621.05, 207,859.16 and 82,636.79
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Solution
The fourth proportional to 150,621.05, 207,859.16 and 82,636.79 is: 114,039.92
Step by Step Solution
- Step 1: Write the proportion equation
150,621.05 : 207,859.16 = 82,636.79 : x - Step 2: Convert to fraction form
150,621.05/207,859.16 = 82,636.79/x - Step 3: Cross multiply
150,621.05x = 207,859.16 × 82,636.79 - Step 4: Simplify right side
150,621.05x = 17,176,812,921.79 - Step 5: Solve for x
x = 17,176,812,921.79/150,621.05 - Step 6: Final answer
x = 114,039.92
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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.