Finding the Fourth Proportional to 128,225.68, 192,166.58 and 99,796.98
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Solution
The fourth proportional to 128,225.68, 192,166.58 and 99,796.98 is: 149,561.65
Step by Step Solution
- Step 1: Write the proportion equation
128,225.68 : 192,166.58 = 99,796.98 : x - Step 2: Convert to fraction form
128,225.68/192,166.58 = 99,796.98/x - Step 3: Cross multiply
128,225.68x = 192,166.58 × 99,796.98 - Step 4: Simplify right side
128,225.68x = 19,177,644,340.93 - Step 5: Solve for x
x = 19,177,644,340.93/128,225.68 - Step 6: Final answer
x = 149,561.65
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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.