Finding the Fourth Proportional to 100,833.91, 139,138.09 and 58,392.07
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Solution
The fourth proportional to 100,833.91, 139,138.09 and 58,392.07 is: 80,573.70
Step by Step Solution
- Step 1: Write the proportion equation
100,833.91 : 139,138.09 = 58,392.07 : x - Step 2: Convert to fraction form
100,833.91/139,138.09 = 58,392.07/x - Step 3: Cross multiply
100,833.91x = 139,138.09 × 58,392.07 - Step 4: Simplify right side
100,833.91x = 8,124,561,090.95 - Step 5: Solve for x
x = 8,124,561,090.95/100,833.91 - Step 6: Final answer
x = 80,573.70
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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.