Finding the Fourth Proportional to 135,973.20, 203,959.80 and 115,852.80
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Solution
The fourth proportional to 135,973.20, 203,959.80 and 115,852.80 is: 173,779.20
Step by Step Solution
- Step 1: Write the proportion equation
135,973.20 : 203,959.80 = 115,852.80 : x - Step 2: Convert to fraction form
135,973.20/203,959.80 = 115,852.80/x - Step 3: Cross multiply
135,973.20x = 203,959.80 × 115,852.80 - Step 4: Simplify right side
135,973.20x = 23,629,313,917.44 - Step 5: Solve for x
x = 23,629,313,917.44/135,973.20 - Step 6: Final answer
x = 173,779.20
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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.