Finding the Fourth Proportional to 101,958.44, 140,753.77 and 63,739.23
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Solution
The fourth proportional to 101,958.44, 140,753.77 and 63,739.23 is: 87,992.09
Step by Step Solution
- Step 1: Write the proportion equation
101,958.44 : 140,753.77 = 63,739.23 : x - Step 2: Convert to fraction form
101,958.44/140,753.77 = 63,739.23/x - Step 3: Cross multiply
101,958.44x = 140,753.77 × 63,739.23 - Step 4: Simplify right side
101,958.44x = 8,971,535,896.93 - Step 5: Solve for x
x = 8,971,535,896.93/101,958.44 - Step 6: Final answer
x = 87,992.09
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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.