Finding the Fourth Proportional to 115,131.29, 157,730.44 and 110,816.75
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Solution
The fourth proportional to 115,131.29, 157,730.44 and 110,816.75 is: 151,819.51
Step by Step Solution
- Step 1: Write the proportion equation
115,131.29 : 157,730.44 = 110,816.75 : x - Step 2: Convert to fraction form
115,131.29/157,730.44 = 110,816.75/x - Step 3: Cross multiply
115,131.29x = 157,730.44 × 110,816.75 - Step 4: Simplify right side
115,131.29x = 17,479,174,854.15 - Step 5: Solve for x
x = 17,479,174,854.15/115,131.29 - Step 6: Final answer
x = 151,819.51
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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.