Finding the Fourth Proportional to 99,425.26, 137,204.10 and 54,102.19
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Solution
The fourth proportional to 99,425.26, 137,204.10 and 54,102.19 is: 74,659.52
Step by Step Solution
- Step 1: Write the proportion equation
99,425.26 : 137,204.10 = 54,102.19 : x - Step 2: Convert to fraction form
99,425.26/137,204.10 = 54,102.19/x - Step 3: Cross multiply
99,425.26x = 137,204.10 × 54,102.19 - Step 4: Simplify right side
99,425.26x = 7,423,042,286.98 - Step 5: Solve for x
x = 7,423,042,286.98/99,425.26 - Step 6: Final answer
x = 74,659.52
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1.5x scale
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.