Finding the Fourth Proportional to 137,975.84, 190,372.92 and 84,241.28
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Solution
The fourth proportional to 137,975.84, 190,372.92 and 84,241.28 is: 116,232.37
Step by Step Solution
- Step 1: Write the proportion equation
137,975.84 : 190,372.92 = 84,241.28 : x - Step 2: Convert to fraction form
137,975.84/190,372.92 = 84,241.28/x - Step 3: Cross multiply
137,975.84x = 190,372.92 × 84,241.28 - Step 4: Simplify right side
137,975.84x = 16,037,258,458.14 - Step 5: Solve for x
x = 16,037,258,458.14/137,975.84 - Step 6: Final answer
x = 116,232.37
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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.