Finding the Fourth Proportional to 140,497.62, 193,884.36 and 76,834.02
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Solution
The fourth proportional to 140,497.62, 193,884.36 and 76,834.02 is: 106,029.66
Step by Step Solution
- Step 1: Write the proportion equation
140,497.62 : 193,884.36 = 76,834.02 : x - Step 2: Convert to fraction form
140,497.62/193,884.36 = 76,834.02/x - Step 3: Cross multiply
140,497.62x = 193,884.36 × 76,834.02 - Step 4: Simplify right side
140,497.62x = 14,896,914,793.93 - Step 5: Solve for x
x = 14,896,914,793.93/140,497.62 - Step 6: Final answer
x = 106,029.66
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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.