Finding the Fourth Proportional to 125,356.94, 172,992.61 and 68,768.31
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Solution
The fourth proportional to 125,356.94, 172,992.61 and 68,768.31 is: 94,900.29
Step by Step Solution
- Step 1: Write the proportion equation
125,356.94 : 172,992.61 = 68,768.31 : x - Step 2: Convert to fraction form
125,356.94/172,992.61 = 68,768.31/x - Step 3: Cross multiply
125,356.94x = 172,992.61 × 68,768.31 - Step 4: Simplify right side
125,356.94x = 11,896,409,432.19 - Step 5: Solve for x
x = 11,896,409,432.19/125,356.94 - Step 6: Final answer
x = 94,900.29
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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.