Finding the Fourth Proportional to 115,035.20, 158,611.68 and 99,092.48
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Solution
The fourth proportional to 115,035.20, 158,611.68 and 99,092.48 is: 136,629.70
Step by Step Solution
- Step 1: Write the proportion equation
115,035.20 : 158,611.68 = 99,092.48 : x - Step 2: Convert to fraction form
115,035.20/158,611.68 = 99,092.48/x - Step 3: Cross multiply
115,035.20x = 158,611.68 × 99,092.48 - Step 4: Simplify right side
115,035.20x = 15,717,224,728.17 - Step 5: Solve for x
x = 15,717,224,728.17/115,035.20 - Step 6: Final answer
x = 136,629.70
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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.