Finding the Fourth Proportional to 142,923.26, 197,324.44 and 91,959.68
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Solution
The fourth proportional to 142,923.26, 197,324.44 and 91,959.68 is: 126,962.49
Step by Step Solution
- Step 1: Write the proportion equation
142,923.26 : 197,324.44 = 91,959.68 : x - Step 2: Convert to fraction form
142,923.26/197,324.44 = 91,959.68/x - Step 3: Cross multiply
142,923.26x = 197,324.44 × 91,959.68 - Step 4: Simplify right side
142,923.26x = 18,145,892,358.58 - Step 5: Solve for x
x = 18,145,892,358.58/142,923.26 - Step 6: Final answer
x = 126,962.49
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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.