Finding the Fourth Proportional to 125,100.05, 172,638.14 and 68,511.42
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Solution
The fourth proportional to 125,100.05, 172,638.14 and 68,511.42 is: 94,545.80
Step by Step Solution
- Step 1: Write the proportion equation
125,100.05 : 172,638.14 = 68,511.42 : x - Step 2: Convert to fraction form
125,100.05/172,638.14 = 68,511.42/x - Step 3: Cross multiply
125,100.05x = 172,638.14 × 68,511.42 - Step 4: Simplify right side
125,100.05x = 11,827,683,775.00 - Step 5: Solve for x
x = 11,827,683,775.00/125,100.05 - Step 6: Final answer
x = 94,545.80
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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.