Finding the Fourth Proportional to 190,437.07, 285,408.21 and 77,989.75
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Solution
The fourth proportional to 190,437.07, 285,408.21 and 77,989.75 is: 116,883.31
Step by Step Solution
- Step 1: Write the proportion equation
190,437.07 : 285,408.21 = 77,989.75 : x - Step 2: Convert to fraction form
190,437.07/285,408.21 = 77,989.75/x - Step 3: Cross multiply
190,437.07x = 285,408.21 × 77,989.75 - Step 4: Simplify right side
190,437.07x = 22,258,914,945.85 - Step 5: Solve for x
x = 22,258,914,945.85/190,437.07 - Step 6: Final answer
x = 116,883.31
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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.