Finding the Fourth Proportional to 136,836.48, 188,395.20 and 119,164.80
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Solution
The fourth proportional to 136,836.48, 188,395.20 and 119,164.80 is: 164,064.99
Step by Step Solution
- Step 1: Write the proportion equation
136,836.48 : 188,395.20 = 119,164.80 : x - Step 2: Convert to fraction form
136,836.48/188,395.20 = 119,164.80/x - Step 3: Cross multiply
136,836.48x = 188,395.20 × 119,164.80 - Step 4: Simplify right side
136,836.48x = 22,450,076,328.96 - Step 5: Solve for x
x = 22,450,076,328.96/136,836.48 - Step 6: Final answer
x = 164,064.99
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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.