Finding the Fourth Proportional to 110,739.75, 152,820.99 and 60,438.75
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Solution
The fourth proportional to 110,739.75, 152,820.99 and 60,438.75 is: 83,405.55
Step by Step Solution
- Step 1: Write the proportion equation
110,739.75 : 152,820.99 = 60,438.75 : x - Step 2: Convert to fraction form
110,739.75/152,820.99 = 60,438.75/x - Step 3: Cross multiply
110,739.75x = 152,820.99 × 60,438.75 - Step 4: Simplify right side
110,739.75x = 9,236,309,609.36 - Step 5: Solve for x
x = 9,236,309,609.36/110,739.75 - Step 6: Final answer
x = 83,405.55
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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.