Finding the Fourth Proportional to 157,076.20, 235,268.70 and 136,340.20
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Solution
The fourth proportional to 157,076.20, 235,268.70 and 136,340.20 is: 204,210.32
Step by Step Solution
- Step 1: Write the proportion equation
157,076.20 : 235,268.70 = 136,340.20 : x - Step 2: Convert to fraction form
157,076.20/235,268.70 = 136,340.20/x - Step 3: Cross multiply
157,076.20x = 235,268.70 × 136,340.20 - Step 4: Simplify right side
157,076.20x = 32,076,581,611.74 - Step 5: Solve for x
x = 32,076,581,611.74/157,076.20 - Step 6: Final answer
x = 204,210.32
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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.