Finding the Fourth Proportional to 125,280.14, 172,888.83 and 68,687.87
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Solution
The fourth proportional to 125,280.14, 172,888.83 and 68,687.87 is: 94,790.48
Step by Step Solution
- Step 1: Write the proportion equation
125,280.14 : 172,888.83 = 68,687.87 : x - Step 2: Convert to fraction form
125,280.14/172,888.83 = 68,687.87/x - Step 3: Cross multiply
125,280.14x = 172,888.83 × 68,687.87 - Step 4: Simplify right side
125,280.14x = 11,875,364,615.05 - Step 5: Solve for x
x = 11,875,364,615.05/125,280.14 - Step 6: Final answer
x = 94,790.48
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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.