Finding the Fourth Proportional to 140,070.15, 193,291.11 and 82,728.05
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Solution
The fourth proportional to 140,070.15, 193,291.11 and 82,728.05 is: 114,161.34
Step by Step Solution
- Step 1: Write the proportion equation
140,070.15 : 193,291.11 = 82,728.05 : x - Step 2: Convert to fraction form
140,070.15/193,291.11 = 82,728.05/x - Step 3: Cross multiply
140,070.15x = 193,291.11 × 82,728.05 - Step 4: Simplify right side
140,070.15x = 15,990,595,646.18 - Step 5: Solve for x
x = 15,990,595,646.18/140,070.15 - Step 6: Final answer
x = 114,161.34
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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.