Finding the Fourth Proportional to 115,554.24, 159,533.60 and 73,149.12
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Solution
The fourth proportional to 115,554.24, 159,533.60 and 73,149.12 is: 100,989.31
Step by Step Solution
- Step 1: Write the proportion equation
115,554.24 : 159,533.60 = 73,149.12 : x - Step 2: Convert to fraction form
115,554.24/159,533.60 = 73,149.12/x - Step 3: Cross multiply
115,554.24x = 159,533.60 × 73,149.12 - Step 4: Simplify right side
115,554.24x = 11,669,742,450.43 - Step 5: Solve for x
x = 11,669,742,450.43/115,554.24 - Step 6: Final answer
x = 100,989.31
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1.5x scale
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.