Finding the Fourth Proportional to 125,078.93, 172,605.74 and 69,888.70
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Solution
The fourth proportional to 125,078.93, 172,605.74 and 69,888.70 is: 96,444.63
Step by Step Solution
- Step 1: Write the proportion equation
125,078.93 : 172,605.74 = 69,888.70 : x - Step 2: Convert to fraction form
125,078.93/172,605.74 = 69,888.70/x - Step 3: Cross multiply
125,078.93x = 172,605.74 × 69,888.70 - Step 4: Simplify right side
125,078.93x = 12,063,190,647.45 - Step 5: Solve for x
x = 12,063,190,647.45/125,078.93 - Step 6: Final answer
x = 96,444.63
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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.