Finding the Fourth Proportional to 136,723.20, 204,995.70 and 122,726.40
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Solution
The fourth proportional to 136,723.20, 204,995.70 and 122,726.40 is: 184,009.62
Step by Step Solution
- Step 1: Write the proportion equation
136,723.20 : 204,995.70 = 122,726.40 : x - Step 2: Convert to fraction form
136,723.20/204,995.70 = 122,726.40/x - Step 3: Cross multiply
136,723.20x = 204,995.70 × 122,726.40 - Step 4: Simplify right side
136,723.20x = 25,158,384,276.48 - Step 5: Solve for x
x = 25,158,384,276.48/136,723.20 - Step 6: Final answer
x = 184,009.62
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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.