Finding the Fourth Proportional to 128,202.93, 192,373.25 and 53,374.73
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Solution
The fourth proportional to 128,202.93, 192,373.25 and 53,374.73 is: 80,090.75
Step by Step Solution
- Step 1: Write the proportion equation
128,202.93 : 192,373.25 = 53,374.73 : x - Step 2: Convert to fraction form
128,202.93/192,373.25 = 53,374.73/x - Step 3: Cross multiply
128,202.93x = 192,373.25 × 53,374.73 - Step 4: Simplify right side
128,202.93x = 10,267,869,049.23 - Step 5: Solve for x
x = 10,267,869,049.23/128,202.93 - Step 6: Final answer
x = 80,090.75
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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.