Finding the Fourth Proportional to 126,249.68, 174,228.20 and 69,664.70
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Solution
The fourth proportional to 126,249.68, 174,228.20 and 69,664.70 is: 96,139.29
Step by Step Solution
- Step 1: Write the proportion equation
126,249.68 : 174,228.20 = 69,664.70 : x - Step 2: Convert to fraction form
126,249.68/174,228.20 = 69,664.70/x - Step 3: Cross multiply
126,249.68x = 174,228.20 × 69,664.70 - Step 4: Simplify right side
126,249.68x = 12,137,554,065.08 - Step 5: Solve for x
x = 12,137,554,065.08/126,249.68 - Step 6: Final answer
x = 96,139.29
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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.