Finding the Fourth Proportional to 115,164.99, 172,762.07 and 45,035.19
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Solution
The fourth proportional to 115,164.99, 172,762.07 and 45,035.19 is: 67,558.49
Step by Step Solution
- Step 1: Write the proportion equation
115,164.99 : 172,762.07 = 45,035.19 : x - Step 2: Convert to fraction form
115,164.99/172,762.07 = 45,035.19/x - Step 3: Cross multiply
115,164.99x = 172,762.07 × 45,035.19 - Step 4: Simplify right side
115,164.99x = 7,780,372,422.07 - Step 5: Solve for x
x = 7,780,372,422.07/115,164.99 - Step 6: Final answer
x = 67,558.49
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1.5x scale
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.