Finding the Fourth Proportional to 154,884.84, 213,761.88 and 91,222.08
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Solution
The fourth proportional to 154,884.84, 213,761.88 and 91,222.08 is: 125,898.72
Step by Step Solution
- Step 1: Write the proportion equation
154,884.84 : 213,761.88 = 91,222.08 : x - Step 2: Convert to fraction form
154,884.84/213,761.88 = 91,222.08/x - Step 3: Cross multiply
154,884.84x = 213,761.88 × 91,222.08 - Step 4: Simplify right side
154,884.84x = 19,499,803,318.31 - Step 5: Solve for x
x = 19,499,803,318.31/154,884.84 - Step 6: Final answer
x = 125,898.72
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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.