Finding the Fourth Proportional to 140,059.26, 193,281.93 and 76,398.12
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Solution
The fourth proportional to 140,059.26, 193,281.93 and 76,398.12 is: 105,429.49
Step by Step Solution
- Step 1: Write the proportion equation
140,059.26 : 193,281.93 = 76,398.12 : x - Step 2: Convert to fraction form
140,059.26/193,281.93 = 76,398.12/x - Step 3: Cross multiply
140,059.26x = 193,281.93 × 76,398.12 - Step 4: Simplify right side
140,059.26x = 14,766,376,081.97 - Step 5: Solve for x
x = 14,766,376,081.97/140,059.26 - Step 6: Final answer
x = 105,429.49
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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.