Finding the Fourth Proportional to 135,201.80, 202,802.70 and 87,962.60
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Solution
The fourth proportional to 135,201.80, 202,802.70 and 87,962.60 is: 131,943.90
Step by Step Solution
- Step 1: Write the proportion equation
135,201.80 : 202,802.70 = 87,962.60 : x - Step 2: Convert to fraction form
135,201.80/202,802.70 = 87,962.60/x - Step 3: Cross multiply
135,201.80x = 202,802.70 × 87,962.60 - Step 4: Simplify right side
135,201.80x = 17,839,052,779.02 - Step 5: Solve for x
x = 17,839,052,779.02/135,201.80 - Step 6: Final answer
x = 131,943.90
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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.