Finding the Fourth Proportional to 125,306.73, 172,907.36 and 71,595.23
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Solution
The fourth proportional to 125,306.73, 172,907.36 and 71,595.23 is: 98,792.31
Step by Step Solution
- Step 1: Write the proportion equation
125,306.73 : 172,907.36 = 71,595.23 : x - Step 2: Convert to fraction form
125,306.73/172,907.36 = 71,595.23/x - Step 3: Cross multiply
125,306.73x = 172,907.36 × 71,595.23 - Step 4: Simplify right side
125,306.73x = 12,379,340,985.38 - Step 5: Solve for x
x = 12,379,340,985.38/125,306.73 - Step 6: Final answer
x = 98,792.31
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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.