Finding the Fourth Proportional to 125,044.05, 172,560.79 and 68,455.43
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Solution
The fourth proportional to 125,044.05, 172,560.79 and 68,455.43 is: 94,468.49
Step by Step Solution
- Step 1: Write the proportion equation
125,044.05 : 172,560.79 = 68,455.43 : x - Step 2: Convert to fraction form
125,044.05/172,560.79 = 68,455.43/x - Step 3: Cross multiply
125,044.05x = 172,560.79 × 68,455.43 - Step 4: Simplify right side
125,044.05x = 11,812,723,080.59 - Step 5: Solve for x
x = 11,812,723,080.59/125,044.05 - Step 6: Final answer
x = 94,468.49
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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.