Finding the Fourth Proportional to 124,704.30, 172,089.99 and 68,114.46
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Solution
The fourth proportional to 124,704.30, 172,089.99 and 68,114.46 is: 93,996.89
Step by Step Solution
- Step 1: Write the proportion equation
124,704.30 : 172,089.99 = 68,114.46 : x - Step 2: Convert to fraction form
124,704.30/172,089.99 = 68,114.46/x - Step 3: Cross multiply
124,704.30x = 172,089.99 × 68,114.46 - Step 4: Simplify right side
124,704.30x = 11,721,816,740.26 - Step 5: Solve for x
x = 11,721,816,740.26/124,704.30 - Step 6: Final answer
x = 93,996.89
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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.