Finding the Fourth Proportional to 126,319.59, 174,319.97 and 69,729.75
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Solution
The fourth proportional to 126,319.59, 174,319.97 and 69,729.75 is: 96,226.46
Step by Step Solution
- Step 1: Write the proportion equation
126,319.59 : 174,319.97 = 69,729.75 : x - Step 2: Convert to fraction form
126,319.59/174,319.97 = 69,729.75/x - Step 3: Cross multiply
126,319.59x = 174,319.97 × 69,729.75 - Step 4: Simplify right side
126,319.59x = 12,155,287,579.46 - Step 5: Solve for x
x = 12,155,287,579.46/126,319.59 - Step 6: Final answer
x = 96,226.46
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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.