Finding the Fourth Proportional to 124,737.05, 172,137.12 and 68,148.43
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Solution
The fourth proportional to 124,737.05, 172,137.12 and 68,148.43 is: 94,044.82
Step by Step Solution
- Step 1: Write the proportion equation
124,737.05 : 172,137.12 = 68,148.43 : x - Step 2: Convert to fraction form
124,737.05/172,137.12 = 68,148.43/x - Step 3: Cross multiply
124,737.05x = 172,137.12 × 68,148.43 - Step 4: Simplify right side
124,737.05x = 11,730,874,042.38 - Step 5: Solve for x
x = 11,730,874,042.38/124,737.05 - Step 6: Final answer
x = 94,044.82
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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.