Finding the Fourth Proportional to 126,228.18, 174,191.97 and 69,639.54
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Solution
The fourth proportional to 126,228.18, 174,191.97 and 69,639.54 is: 96,100.96
Step by Step Solution
- Step 1: Write the proportion equation
126,228.18 : 174,191.97 = 69,639.54 : x - Step 2: Convert to fraction form
126,228.18/174,191.97 = 69,639.54/x - Step 3: Cross multiply
126,228.18x = 174,191.97 × 69,639.54 - Step 4: Simplify right side
126,228.18x = 12,130,648,662.49 - Step 5: Solve for x
x = 12,130,648,662.49/126,228.18 - Step 6: Final answer
x = 96,100.96
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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.