Finding the Fourth Proportional to 126,797.84, 174,935.40 and 76,478.48
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Solution
The fourth proportional to 126,797.84, 174,935.40 and 76,478.48 is: 105,512.79
Step by Step Solution
- Step 1: Write the proportion equation
126,797.84 : 174,935.40 = 76,478.48 : x - Step 2: Convert to fraction form
126,797.84/174,935.40 = 76,478.48/x - Step 3: Cross multiply
126,797.84x = 174,935.40 × 76,478.48 - Step 4: Simplify right side
126,797.84x = 13,378,793,490.19 - Step 5: Solve for x
x = 13,378,793,490.19/126,797.84 - Step 6: Final answer
x = 105,512.79
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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.