Finding the Fourth Proportional to 126,955.44, 175,194.36 and 76,645.68
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Solution
The fourth proportional to 126,955.44, 175,194.36 and 76,645.68 is: 105,768.53
Step by Step Solution
- Step 1: Write the proportion equation
126,955.44 : 175,194.36 = 76,645.68 : x - Step 2: Convert to fraction form
126,955.44/175,194.36 = 76,645.68/x - Step 3: Cross multiply
126,955.44x = 175,194.36 × 76,645.68 - Step 4: Simplify right side
126,955.44x = 13,427,890,854.36 - Step 5: Solve for x
x = 13,427,890,854.36/126,955.44 - Step 6: Final answer
x = 105,768.53
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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.