Finding the Fourth Proportional to 135,315.20, 202,972.80 and 65,201.60
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Solution
The fourth proportional to 135,315.20, 202,972.80 and 65,201.60 is: 97,802.40
Step by Step Solution
- Step 1: Write the proportion equation
135,315.20 : 202,972.80 = 65,201.60 : x - Step 2: Convert to fraction form
135,315.20/202,972.80 = 65,201.60/x - Step 3: Cross multiply
135,315.20x = 202,972.80 × 65,201.60 - Step 4: Simplify right side
135,315.20x = 13,234,151,316.48 - Step 5: Solve for x
x = 13,234,151,316.48/135,315.20 - Step 6: Final answer
x = 97,802.40
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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.