Finding the Fourth Proportional to 135,252.80, 203,003.20 and 68,739.20
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Solution
The fourth proportional to 135,252.80, 203,003.20 and 68,739.20 is: 103,171.82
Step by Step Solution
- Step 1: Write the proportion equation
135,252.80 : 203,003.20 = 68,739.20 : x - Step 2: Convert to fraction form
135,252.80/203,003.20 = 68,739.20/x - Step 3: Cross multiply
135,252.80x = 203,003.20 × 68,739.20 - Step 4: Simplify right side
135,252.80x = 13,954,277,565.44 - Step 5: Solve for x
x = 13,954,277,565.44/135,252.80 - Step 6: Final answer
x = 103,171.82
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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.