Finding the Fourth Proportional to 150,685.14, 207,974.16 and 99,698.88
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Solution
The fourth proportional to 150,685.14, 207,974.16 and 99,698.88 is: 137,603.42
Step by Step Solution
- Step 1: Write the proportion equation
150,685.14 : 207,974.16 = 99,698.88 : x - Step 2: Convert to fraction form
150,685.14/207,974.16 = 99,698.88/x - Step 3: Cross multiply
150,685.14x = 207,974.16 × 99,698.88 - Step 4: Simplify right side
150,685.14x = 20,734,790,820.94 - Step 5: Solve for x
x = 20,734,790,820.94/150,685.14 - Step 6: Final answer
x = 137,603.42
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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.