Finding the Fourth Proportional to 157,869.21, 235,652.16 and 137,939.97
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Solution
The fourth proportional to 157,869.21, 235,652.16 and 137,939.97 is: 205,903.68
Step by Step Solution
- Step 1: Write the proportion equation
157,869.21 : 235,652.16 = 137,939.97 : x - Step 2: Convert to fraction form
157,869.21/235,652.16 = 137,939.97/x - Step 3: Cross multiply
157,869.21x = 235,652.16 × 137,939.97 - Step 4: Simplify right side
157,869.21x = 32,505,851,880.84 - Step 5: Solve for x
x = 32,505,851,880.84/157,869.21 - Step 6: Final answer
x = 205,903.68
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.