Finding the Fourth Proportional to 158,190.48, 218,395.08 and 136,936.08
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Solution
The fourth proportional to 158,190.48, 218,395.08 and 136,936.08 is: 189,051.62
Step by Step Solution
- Step 1: Write the proportion equation
158,190.48 : 218,395.08 = 136,936.08 : x - Step 2: Convert to fraction form
158,190.48/218,395.08 = 136,936.08/x - Step 3: Cross multiply
158,190.48x = 218,395.08 × 136,936.08 - Step 4: Simplify right side
158,190.48x = 29,906,166,146.49 - Step 5: Solve for x
x = 29,906,166,146.49/158,190.48 - Step 6: Final answer
x = 189,051.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.