Finding the Fourth Proportional to 154,361.52, 213,013.08 and 87,294.96
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Solution
The fourth proportional to 154,361.52, 213,013.08 and 87,294.96 is: 120,463.75
Step by Step Solution
- Step 1: Write the proportion equation
154,361.52 : 213,013.08 = 87,294.96 : x - Step 2: Convert to fraction form
154,361.52/213,013.08 = 87,294.96/x - Step 3: Cross multiply
154,361.52x = 213,013.08 × 87,294.96 - Step 4: Simplify right side
154,361.52x = 18,594,968,298.08 - Step 5: Solve for x
x = 18,594,968,298.08/154,361.52 - Step 6: Final answer
x = 120,463.75
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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.