Finding the Fourth Proportional to 135,969.20, 203,953.80 and 115,848.80
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Solution
The fourth proportional to 135,969.20, 203,953.80 and 115,848.80 is: 173,773.20
Step by Step Solution
- Step 1: Write the proportion equation
135,969.20 : 203,953.80 = 115,848.80 : x - Step 2: Convert to fraction form
135,969.20/203,953.80 = 115,848.80/x - Step 3: Cross multiply
135,969.20x = 203,953.80 × 115,848.80 - Step 4: Simplify right side
135,969.20x = 23,627,802,985.44 - Step 5: Solve for x
x = 23,627,802,985.44/135,969.20 - Step 6: Final answer
x = 173,773.20
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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.