Finding the Fourth Proportional to 128,550.16, 193,121.24 and 91,202.96
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Solution
The fourth proportional to 128,550.16, 193,121.24 and 91,202.96 is: 137,014.44
Step by Step Solution
- Step 1: Write the proportion equation
128,550.16 : 193,121.24 = 91,202.96 : x - Step 2: Convert to fraction form
128,550.16/193,121.24 = 91,202.96/x - Step 3: Cross multiply
128,550.16x = 193,121.24 × 91,202.96 - Step 4: Simplify right side
128,550.16x = 17,613,228,726.87 - Step 5: Solve for x
x = 17,613,228,726.87/128,550.16 - Step 6: Final answer
x = 137,014.44
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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.