Finding the Fourth Proportional to 128,825.97, 193,148.41 and 56,744.67
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Solution
The fourth proportional to 128,825.97, 193,148.41 and 56,744.67 is: 85,077.12
Step by Step Solution
- Step 1: Write the proportion equation
128,825.97 : 193,148.41 = 56,744.67 : x - Step 2: Convert to fraction form
128,825.97/193,148.41 = 56,744.67/x - Step 3: Cross multiply
128,825.97x = 193,148.41 × 56,744.67 - Step 4: Simplify right side
128,825.97x = 10,960,142,502.75 - Step 5: Solve for x
x = 10,960,142,502.75/128,825.97 - Step 6: Final answer
x = 85,077.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.