Finding the Fourth Proportional to 115,128.85, 157,727.10 and 110,814.31
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Solution
The fourth proportional to 115,128.85, 157,727.10 and 110,814.31 is: 151,816.16
Step by Step Solution
- Step 1: Write the proportion equation
115,128.85 : 157,727.10 = 110,814.31 : x - Step 2: Convert to fraction form
115,128.85/157,727.10 = 110,814.31/x - Step 3: Cross multiply
115,128.85x = 157,727.10 × 110,814.31 - Step 4: Simplify right side
115,128.85x = 17,478,419,600.23 - Step 5: Solve for x
x = 17,478,419,600.23/115,128.85 - Step 6: Final answer
x = 151,816.16
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.