Finding the Fourth Proportional to 135,321.60, 202,982.40 and 130,137.60
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Solution
The fourth proportional to 135,321.60, 202,982.40 and 130,137.60 is: 195,206.40
Step by Step Solution
- Step 1: Write the proportion equation
135,321.60 : 202,982.40 = 130,137.60 : x - Step 2: Convert to fraction form
135,321.60/202,982.40 = 130,137.60/x - Step 3: Cross multiply
135,321.60x = 202,982.40 × 130,137.60 - Step 4: Simplify right side
135,321.60x = 26,415,642,378.24 - Step 5: Solve for x
x = 26,415,642,378.24/135,321.60 - Step 6: Final answer
x = 195,206.40
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.