Finding the Fourth Proportional to 172,737.05, 258,908.99 and 105,119.96
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Solution
The fourth proportional to 172,737.05, 258,908.99 and 105,119.96 is: 157,560.30
Step by Step Solution
- Step 1: Write the proportion equation
172,737.05 : 258,908.99 = 105,119.96 : x - Step 2: Convert to fraction form
172,737.05/258,908.99 = 105,119.96/x - Step 3: Cross multiply
172,737.05x = 258,908.99 × 105,119.96 - Step 4: Simplify right side
172,737.05x = 27,216,500,852.30 - Step 5: Solve for x
x = 27,216,500,852.30/172,737.05 - Step 6: Final answer
x = 157,560.30
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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.