Finding the Fourth Proportional to 113,846.70, 157,247.95 and 85,294.05
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Solution
The fourth proportional to 113,846.70, 157,247.95 and 85,294.05 is: 117,810.31
Step by Step Solution
- Step 1: Write the proportion equation
113,846.70 : 157,247.95 = 85,294.05 : x - Step 2: Convert to fraction form
113,846.70/157,247.95 = 85,294.05/x - Step 3: Cross multiply
113,846.70x = 157,247.95 × 85,294.05 - Step 4: Simplify right side
113,846.70x = 13,412,314,509.70 - Step 5: Solve for x
x = 13,412,314,509.70/113,846.70 - Step 6: Final answer
x = 117,810.31
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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.