Finding the Fourth Proportional to 134,781.20, 202,171.80 and 95,415.20
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Solution
The fourth proportional to 134,781.20, 202,171.80 and 95,415.20 is: 143,122.80
Step by Step Solution
- Step 1: Write the proportion equation
134,781.20 : 202,171.80 = 95,415.20 : x - Step 2: Convert to fraction form
134,781.20/202,171.80 = 95,415.20/x - Step 3: Cross multiply
134,781.20x = 202,171.80 × 95,415.20 - Step 4: Simplify right side
134,781.20x = 19,290,262,731.36 - Step 5: Solve for x
x = 19,290,262,731.36/134,781.20 - Step 6: Final answer
x = 143,122.80
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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.